diff --git a/cmd/buckets_upgrade_test.go b/cmd/buckets_upgrade_test.go
index 0b09aea8a..799bfa508 100644
--- a/cmd/buckets_upgrade_test.go
+++ b/cmd/buckets_upgrade_test.go
@@ -3,13 +3,14 @@
 package cmd
 
 import (
+	"io"
+	"testing"
+
 	"github.com/formancehq/go-libs/bun/bunconnect"
 	"github.com/formancehq/go-libs/logging"
 	"github.com/formancehq/go-libs/testing/docker"
 	"github.com/formancehq/go-libs/testing/platform/pgtesting"
 	"github.com/stretchr/testify/require"
-	"io"
-	"testing"
 )
 
 func TestBucketsUpgrade(t *testing.T) {
diff --git a/internal/api/v1/controllers_transactions_create_test.go b/internal/api/v1/controllers_transactions_create_test.go
index 1e146ee32..e1a82f8f6 100644
--- a/internal/api/v1/controllers_transactions_create_test.go
+++ b/internal/api/v1/controllers_transactions_create_test.go
@@ -2,13 +2,14 @@ package v1
 
 import (
 	"encoding/json"
-	"github.com/formancehq/go-libs/time"
 	"math/big"
 	"net/http"
 	"net/http/httptest"
 	"net/url"
 	"testing"
 
+	"github.com/formancehq/go-libs/time"
+
 	"github.com/formancehq/go-libs/api"
 	"github.com/formancehq/go-libs/auth"
 	"github.com/formancehq/go-libs/pointer"
diff --git a/internal/api/v2/controllers_transactions_create_test.go b/internal/api/v2/controllers_transactions_create_test.go
index c484ea161..8772b091d 100644
--- a/internal/api/v2/controllers_transactions_create_test.go
+++ b/internal/api/v2/controllers_transactions_create_test.go
@@ -1,13 +1,14 @@
 package v2
 
 import (
-	"github.com/formancehq/go-libs/time"
 	"math/big"
 	"net/http"
 	"net/http/httptest"
 	"net/url"
 	"testing"
 
+	"github.com/formancehq/go-libs/time"
+
 	"github.com/formancehq/go-libs/api"
 	"github.com/formancehq/go-libs/auth"
 	"github.com/formancehq/go-libs/pointer"
diff --git a/internal/ledger.go b/internal/ledger.go
index 2fc2e738e..61e090425 100644
--- a/internal/ledger.go
+++ b/internal/ledger.go
@@ -2,10 +2,11 @@ package ledger
 
 import (
 	"fmt"
-	"github.com/formancehq/go-libs/metadata"
-	"github.com/formancehq/go-libs/time"
 	"regexp"
 	"slices"
+
+	"github.com/formancehq/go-libs/metadata"
+	"github.com/formancehq/go-libs/time"
 )
 
 const (
diff --git a/internal/storage/driver/driver_test.go b/internal/storage/driver/driver_test.go
index a4dc56ab6..b2b9d037e 100644
--- a/internal/storage/driver/driver_test.go
+++ b/internal/storage/driver/driver_test.go
@@ -4,13 +4,14 @@ package driver_test
 
 import (
 	"fmt"
+	"testing"
+
 	"github.com/formancehq/go-libs/bun/bunconnect"
 	"github.com/formancehq/go-libs/bun/bundebug"
 	"github.com/formancehq/go-libs/testing/docker"
 	"github.com/formancehq/go-libs/testing/platform/pgtesting"
 	"github.com/formancehq/ledger/internal/storage/driver"
 	"github.com/uptrace/bun"
-	"testing"
 
 	"github.com/formancehq/go-libs/logging"
 	"github.com/stretchr/testify/require"
diff --git a/internal/storage/ledger/accounts_test.go b/internal/storage/ledger/accounts_test.go
index 32c809233..7ed436371 100644
--- a/internal/storage/ledger/accounts_test.go
+++ b/internal/storage/ledger/accounts_test.go
@@ -4,11 +4,12 @@ package ledger
 
 import (
 	"context"
+	"math/big"
+	"testing"
+
 	"github.com/formancehq/go-libs/pointer"
 	ledgercontroller "github.com/formancehq/ledger/internal/controller/ledger"
 	"github.com/pkg/errors"
-	"math/big"
-	"testing"
 
 	"github.com/formancehq/go-libs/time"
 
diff --git a/internal/storage/ledger/balances.go b/internal/storage/ledger/balances.go
index bdb72f34b..a2fe65cd1 100644
--- a/internal/storage/ledger/balances.go
+++ b/internal/storage/ledger/balances.go
@@ -2,11 +2,12 @@ package ledger
 
 import (
 	"context"
-	"github.com/formancehq/go-libs/platform/postgres"
-	"github.com/pkg/errors"
 	"math/big"
 	"strings"
 
+	"github.com/formancehq/go-libs/platform/postgres"
+	"github.com/pkg/errors"
+
 	"github.com/formancehq/ledger/internal/tracing"
 
 	"github.com/formancehq/go-libs/query"
diff --git a/internal/storage/ledger/balances_test.go b/internal/storage/ledger/balances_test.go
index 1cfe181d4..026946d9f 100644
--- a/internal/storage/ledger/balances_test.go
+++ b/internal/storage/ledger/balances_test.go
@@ -4,19 +4,21 @@ package ledger
 
 import (
 	"database/sql"
+	"math/big"
+	"testing"
+
 	"github.com/formancehq/go-libs/metadata"
 	"github.com/formancehq/go-libs/time"
 	ledgercontroller "github.com/formancehq/ledger/internal/controller/ledger"
-	"math/big"
-	"testing"
 
 	"github.com/formancehq/go-libs/logging"
 	"github.com/formancehq/go-libs/pointer"
 
+	libtime "time"
+
 	"github.com/formancehq/go-libs/query"
 	ledger "github.com/formancehq/ledger/internal"
 	"github.com/stretchr/testify/require"
-	libtime "time"
 )
 
 func TestBalancesGet(t *testing.T) {
diff --git a/internal/storage/ledger/logs_test.go b/internal/storage/ledger/logs_test.go
index fe2c50fbd..0895b3c24 100644
--- a/internal/storage/ledger/logs_test.go
+++ b/internal/storage/ledger/logs_test.go
@@ -5,11 +5,12 @@ package ledger
 import (
 	"context"
 	"database/sql"
+	"math/big"
+	"testing"
+
 	"github.com/alitto/pond"
 	ledgercontroller "github.com/formancehq/ledger/internal/controller/ledger"
 	"github.com/pkg/errors"
-	"math/big"
-	"testing"
 
 	"github.com/formancehq/go-libs/bun/bunpaginate"
 	"github.com/formancehq/go-libs/time"
diff --git a/internal/storage/ledger/main_test.go b/internal/storage/ledger/main_test.go
index 7c64d1891..5e3c33044 100644
--- a/internal/storage/ledger/main_test.go
+++ b/internal/storage/ledger/main_test.go
@@ -4,6 +4,9 @@ package ledger
 
 import (
 	"database/sql"
+	"math/big"
+	"testing"
+
 	"github.com/formancehq/go-libs/bun/bunconnect"
 	"github.com/formancehq/go-libs/bun/bundebug"
 	"github.com/formancehq/go-libs/testing/docker"
@@ -12,8 +15,6 @@ import (
 	"github.com/formancehq/ledger/internal/storage/bucket"
 	systemstore "github.com/formancehq/ledger/internal/storage/system"
 	"github.com/google/go-cmp/cmp"
-	"math/big"
-	"testing"
 
 	"github.com/uptrace/bun/dialect/pgdialect"
 
diff --git a/internal/storage/ledger/moves.go b/internal/storage/ledger/moves.go
index 146dd3474..fff1e6398 100644
--- a/internal/storage/ledger/moves.go
+++ b/internal/storage/ledger/moves.go
@@ -2,10 +2,10 @@ package ledger
 
 import (
 	"context"
+	"slices"
+
 	. "github.com/formancehq/go-libs/collectionutils"
 	ledger "github.com/formancehq/ledger/internal"
-	"math/big"
-	"slices"
 
 	"github.com/formancehq/go-libs/bun/bunpaginate"
 	"github.com/formancehq/go-libs/platform/postgres"
@@ -93,40 +93,6 @@ type Move struct {
 
 type Moves []*Move
 
-func (m Moves) volumeUpdates() []AccountsVolumes {
-
-	aggregatedVolumes := make(map[string]map[string][]*Move)
-	for _, move := range m {
-		if _, ok := aggregatedVolumes[move.Account]; !ok {
-			aggregatedVolumes[move.Account] = make(map[string][]*Move)
-		}
-		aggregatedVolumes[move.Account][move.Asset] = append(aggregatedVolumes[move.Account][move.Asset], move)
-	}
-
-	ret := make([]AccountsVolumes, 0)
-	for account, movesByAsset := range aggregatedVolumes {
-		for asset, moves := range movesByAsset {
-			volumes := ledger.NewEmptyVolumes()
-			for _, move := range moves {
-				if move.IsSource {
-					volumes.Output.Add(volumes.Output, (*big.Int)(move.Amount))
-				} else {
-					volumes.Input.Add(volumes.Input, (*big.Int)(move.Amount))
-				}
-			}
-			ret = append(ret, AccountsVolumes{
-				Ledger:  moves[0].Ledger,
-				Account: account,
-				Asset:   asset,
-				Input:   volumes.Input,
-				Output:  volumes.Output,
-			})
-		}
-	}
-
-	return ret
-}
-
 func (m Moves) ComputePostCommitEffectiveVolumes() ledger.PostCommitVolumes {
 	type key struct {
 		Account string
diff --git a/internal/storage/ledger/moves_test.go b/internal/storage/ledger/moves_test.go
index 0448ac59b..032db120a 100644
--- a/internal/storage/ledger/moves_test.go
+++ b/internal/storage/ledger/moves_test.go
@@ -5,6 +5,10 @@ package ledger
 import (
 	"database/sql"
 	"fmt"
+	"math/big"
+	"math/rand"
+	"testing"
+
 	"github.com/alitto/pond"
 	"github.com/formancehq/go-libs/bun/bunpaginate"
 	"github.com/formancehq/go-libs/logging"
@@ -14,9 +18,6 @@ import (
 	ledgercontroller "github.com/formancehq/ledger/internal/controller/ledger"
 	"github.com/pkg/errors"
 	"github.com/stretchr/testify/require"
-	"math/big"
-	"math/rand"
-	"testing"
 )
 
 func TestMovesInsert(t *testing.T) {
diff --git a/internal/storage/ledger/transactions_test.go b/internal/storage/ledger/transactions_test.go
index c556f3d1d..4c0b85bcf 100644
--- a/internal/storage/ledger/transactions_test.go
+++ b/internal/storage/ledger/transactions_test.go
@@ -6,11 +6,12 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
+	"math/big"
+	"testing"
+
 	"github.com/formancehq/go-libs/platform/postgres"
 	ledgercontroller "github.com/formancehq/ledger/internal/controller/ledger"
 	"github.com/shomali11/xsql"
-	"math/big"
-	"testing"
 
 	"github.com/formancehq/go-libs/time"
 
@@ -19,11 +20,12 @@ import (
 	"github.com/formancehq/go-libs/logging"
 	"github.com/formancehq/go-libs/pointer"
 
+	libtime "time"
+
 	"github.com/formancehq/go-libs/metadata"
 	"github.com/formancehq/go-libs/query"
 	ledger "github.com/formancehq/ledger/internal"
 	"github.com/stretchr/testify/require"
-	libtime "time"
 )
 
 func TestTransactionsGetWithVolumes(t *testing.T) {
diff --git a/internal/storage/ledger/volumes.go b/internal/storage/ledger/volumes.go
index d7a5da9c8..d5d65dbf6 100644
--- a/internal/storage/ledger/volumes.go
+++ b/internal/storage/ledger/volumes.go
@@ -3,9 +3,10 @@ package ledger
 import (
 	"context"
 	"fmt"
-	"github.com/formancehq/go-libs/platform/postgres"
 	"math/big"
 
+	"github.com/formancehq/go-libs/platform/postgres"
+
 	"github.com/formancehq/ledger/internal/tracing"
 
 	"github.com/formancehq/go-libs/bun/bunpaginate"
diff --git a/internal/storage/ledger/volumes_test.go b/internal/storage/ledger/volumes_test.go
index e827b5c9a..ba5203e53 100644
--- a/internal/storage/ledger/volumes_test.go
+++ b/internal/storage/ledger/volumes_test.go
@@ -4,13 +4,14 @@ package ledger
 
 import (
 	"database/sql"
-	"github.com/formancehq/go-libs/platform/postgres"
-	ledgercontroller "github.com/formancehq/ledger/internal/controller/ledger"
-	"github.com/pkg/errors"
 	"math/big"
 	"testing"
 	libtime "time"
 
+	"github.com/formancehq/go-libs/platform/postgres"
+	ledgercontroller "github.com/formancehq/ledger/internal/controller/ledger"
+	"github.com/pkg/errors"
+
 	"github.com/formancehq/go-libs/time"
 
 	"github.com/formancehq/go-libs/logging"
diff --git a/internal/storage/system/configuration_test.go b/internal/storage/system/configuration_test.go
index 42c3f9152..abad9189d 100644
--- a/internal/storage/system/configuration_test.go
+++ b/internal/storage/system/configuration_test.go
@@ -3,10 +3,11 @@
 package system
 
 import (
+	"testing"
+
 	"github.com/formancehq/go-libs/logging"
 	"github.com/formancehq/go-libs/platform/postgres"
 	"github.com/stretchr/testify/require"
-	"testing"
 )
 
 func TestConfiguration(t *testing.T) {
diff --git a/internal/storage/system/ledgers_test.go b/internal/storage/system/ledgers_test.go
index dc7b35254..ccf2e2940 100644
--- a/internal/storage/system/ledgers_test.go
+++ b/internal/storage/system/ledgers_test.go
@@ -4,12 +4,13 @@ package system
 
 import (
 	"fmt"
+	"testing"
+
 	"github.com/formancehq/go-libs/bun/bundebug"
 	"github.com/formancehq/go-libs/metadata"
 	ledger "github.com/formancehq/ledger/internal"
 	ledgercontroller "github.com/formancehq/ledger/internal/controller/ledger"
 	"github.com/uptrace/bun"
-	"testing"
 
 	"github.com/google/uuid"
 
diff --git a/internal/storage/system/migrations_test.go b/internal/storage/system/migrations_test.go
index 4bd16017a..b1fe347e5 100644
--- a/internal/storage/system/migrations_test.go
+++ b/internal/storage/system/migrations_test.go
@@ -5,6 +5,8 @@ package system
 import (
 	"context"
 	"fmt"
+	"testing"
+
 	"github.com/formancehq/go-libs/bun/bunconnect"
 	"github.com/formancehq/go-libs/bun/bundebug"
 	"github.com/formancehq/go-libs/logging"
@@ -13,7 +15,6 @@ import (
 	ledger "github.com/formancehq/ledger/internal"
 	"github.com/stretchr/testify/require"
 	"github.com/uptrace/bun"
-	"testing"
 )
 
 type Hook struct {
diff --git a/internal/transaction_test.go b/internal/transaction_test.go
index c9883aaa8..32d394186 100644
--- a/internal/transaction_test.go
+++ b/internal/transaction_test.go
@@ -1,10 +1,11 @@
 package ledger
 
 import (
-	"github.com/formancehq/go-libs/time"
 	"math/big"
 	"testing"
 
+	"github.com/formancehq/go-libs/time"
+
 	"github.com/stretchr/testify/require"
 )
 
diff --git a/test/e2e/integration_test.go b/test/e2e/integration_test.go
index 8a7b948da..21a77a201 100644
--- a/test/e2e/integration_test.go
+++ b/test/e2e/integration_test.go
@@ -5,6 +5,9 @@ package test_suite
 import (
 	"encoding/json"
 	"fmt"
+	"io"
+	"math/big"
+
 	"github.com/formancehq/go-libs/logging"
 	"github.com/formancehq/go-libs/pointer"
 	. "github.com/formancehq/go-libs/testing/api"
@@ -15,8 +18,6 @@ import (
 	"github.com/formancehq/stack/ledger/client/models/operations"
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
-	"io"
-	"math/big"
 )
 
 var _ = Context("Ledger integration tests", func() {
diff --git a/test/e2e/stress_test.go b/test/e2e/stress_test.go
index e56c7137d..cfb56a263 100644
--- a/test/e2e/stress_test.go
+++ b/test/e2e/stress_test.go
@@ -5,6 +5,11 @@ package test_suite
 import (
 	"context"
 	"fmt"
+	"math/big"
+	"math/rand"
+	"sync"
+	"sync/atomic"
+
 	"github.com/alitto/pond"
 	"github.com/formancehq/go-libs/logging"
 	"github.com/formancehq/go-libs/pointer"
@@ -16,10 +21,6 @@ import (
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
 	"github.com/onsi/gomega/types"
-	"math/big"
-	"math/rand"
-	"sync"
-	"sync/atomic"
 )
 
 var _ = Context("Ledger stress tests", func() {
diff --git a/test/performance/benchmark_test.go b/test/performance/benchmark_test.go
index 19b39e0f2..853e5a793 100644
--- a/test/performance/benchmark_test.go
+++ b/test/performance/benchmark_test.go
@@ -5,15 +5,15 @@ package performance_test
 import (
 	"context"
 	"fmt"
+	"sort"
+	"sync/atomic"
+	"testing"
+
 	"github.com/formancehq/go-libs/collectionutils"
 	"github.com/formancehq/go-libs/time"
 	ledger "github.com/formancehq/ledger/internal"
 	"github.com/google/uuid"
 	"github.com/stretchr/testify/require"
-	"sort"
-	"sync"
-	"sync/atomic"
-	"testing"
 )
 
 type Iterator interface {
@@ -32,8 +32,6 @@ func (c RunConfiguration) String() string {
 }
 
 type Benchmark struct {
-	mu sync.Mutex
-
 	EnvFactories map[string]EnvFactory
 	Scripts      map[string]func(int) (string, map[string]string)
 
@@ -41,16 +39,6 @@ type Benchmark struct {
 	b       *testing.B
 }
 
-func (benchmark *Benchmark) addReport(env, script string, report *Report) {
-	benchmark.mu.Lock()
-	defer benchmark.mu.Unlock()
-
-	if benchmark.reports[env] == nil {
-		benchmark.reports[env] = make(map[string]*Report)
-	}
-	benchmark.reports[env][script] = report
-}
-
 func (benchmark *Benchmark) Run(ctx context.Context) error {
 	for envName, envFactory := range benchmark.EnvFactories {
 		scriptsKeys := collectionutils.Keys(benchmark.Scripts)
diff --git a/test/performance/env_core_test.go b/test/performance/env_core_test.go
index abf1e24ca..0d60122b5 100644
--- a/test/performance/env_core_test.go
+++ b/test/performance/env_core_test.go
@@ -4,6 +4,8 @@ package performance_test
 
 import (
 	"context"
+	"testing"
+
 	"github.com/formancehq/go-libs/bun/bunconnect"
 	"github.com/formancehq/go-libs/bun/bundebug"
 	"github.com/formancehq/go-libs/testing/platform/pgtesting"
@@ -16,7 +18,6 @@ import (
 	"github.com/pkg/errors"
 	"github.com/stretchr/testify/require"
 	"github.com/uptrace/bun"
-	"testing"
 )
 
 type CoreEnv struct {
diff --git a/test/performance/env_remote_ledger_test.go b/test/performance/env_remote_ledger_test.go
index aff7a9227..4b8770836 100644
--- a/test/performance/env_remote_ledger_test.go
+++ b/test/performance/env_remote_ledger_test.go
@@ -4,6 +4,9 @@ package performance_test
 
 import (
 	"context"
+	"net/http"
+	"testing"
+
 	"github.com/formancehq/go-libs/collectionutils"
 	"github.com/formancehq/go-libs/time"
 	ledger "github.com/formancehq/ledger/internal"
@@ -12,8 +15,6 @@ import (
 	"github.com/formancehq/stack/ledger/client/models/operations"
 	"github.com/pkg/errors"
 	"github.com/stretchr/testify/require"
-	"net/http"
-	"testing"
 )
 
 type RemoteLedgerEnvFactory struct {
diff --git a/test/performance/env_remote_stack_test.go b/test/performance/env_remote_stack_test.go
index f93ffc304..84b5ddfd5 100644
--- a/test/performance/env_remote_stack_test.go
+++ b/test/performance/env_remote_stack_test.go
@@ -4,6 +4,9 @@ package performance_test
 
 import (
 	"context"
+	"net/http"
+	"testing"
+
 	"github.com/formancehq/go-libs/collectionutils"
 	"github.com/formancehq/go-libs/time"
 	ledger "github.com/formancehq/ledger/internal"
@@ -12,8 +15,6 @@ import (
 	"github.com/formancehq/stack/ledger/client/models/operations"
 	"github.com/pkg/errors"
 	"github.com/stretchr/testify/require"
-	"net/http"
-	"testing"
 )
 
 type RemoteStackEnvFactory struct {
@@ -25,7 +26,7 @@ func (r *RemoteStackEnvFactory) Create(ctx context.Context, b *testing.B, ledger
 
 	client := ledgerclient.New(
 		ledgerclient.WithClient(r.httpClient),
-		ledgerclient.WithServerURL(r.stackURL + "/api/ledger"),
+		ledgerclient.WithServerURL(r.stackURL+"/api/ledger"),
 	)
 
 	_, err := client.Ledger.V2.CreateLedger(ctx, operations.V2CreateLedgerRequest{
diff --git a/test/performance/env_test.go b/test/performance/env_test.go
index c989b09b0..c79d47af3 100644
--- a/test/performance/env_test.go
+++ b/test/performance/env_test.go
@@ -4,8 +4,9 @@ package performance_test
 
 import (
 	"context"
-	"github.com/formancehq/ledger/internal"
 	"testing"
+
+	ledger "github.com/formancehq/ledger/internal"
 )
 
 type TransactionExecutor interface {
diff --git a/test/performance/env_testserver_test.go b/test/performance/env_testserver_test.go
index fb64d1fea..017e78c7d 100644
--- a/test/performance/env_testserver_test.go
+++ b/test/performance/env_testserver_test.go
@@ -4,6 +4,10 @@ package performance_test
 
 import (
 	"context"
+	"io"
+	"os"
+	"testing"
+
 	"github.com/formancehq/go-libs/pointer"
 	"github.com/formancehq/go-libs/testing/platform/pgtesting"
 	"github.com/formancehq/go-libs/time"
@@ -12,9 +16,6 @@ import (
 	"github.com/formancehq/stack/ledger/client/models/components"
 	"github.com/formancehq/stack/ledger/client/models/operations"
 	"github.com/stretchr/testify/require"
-	"io"
-	"os"
-	"testing"
 )
 
 type TestServerEnv struct {
diff --git a/test/performance/features_test.go b/test/performance/features_test.go
index d2da8bc0d..64741c63e 100644
--- a/test/performance/features_test.go
+++ b/test/performance/features_test.go
@@ -3,10 +3,11 @@
 package performance_test
 
 import (
-	. "github.com/formancehq/go-libs/collectionutils"
-	ledger "github.com/formancehq/ledger/internal"
 	"slices"
 	"strings"
+
+	. "github.com/formancehq/go-libs/collectionutils"
+	ledger "github.com/formancehq/ledger/internal"
 )
 
 func buildAllPossibleConfigurations() []FeatureConfiguration {
diff --git a/test/performance/main_test.go b/test/performance/main_test.go
index ab93e121f..3dc32dee1 100644
--- a/test/performance/main_test.go
+++ b/test/performance/main_test.go
@@ -6,14 +6,15 @@ import (
 	"context"
 	"crypto/tls"
 	"flag"
+	"net/http"
+	"testing"
+
 	"github.com/formancehq/go-libs/logging"
 	"github.com/formancehq/go-libs/testing/docker"
 	"github.com/formancehq/go-libs/testing/platform/pgtesting"
 	"github.com/formancehq/go-libs/testing/utils"
 	"golang.org/x/oauth2"
 	"golang.org/x/oauth2/clientcredentials"
-	"net/http"
-	"testing"
 )
 
 var (
diff --git a/test/performance/report_test.go b/test/performance/report_test.go
index 4d1d5a073..aceefb137 100644
--- a/test/performance/report_test.go
+++ b/test/performance/report_test.go
@@ -3,9 +3,10 @@
 package performance_test
 
 import (
-	"github.com/formancehq/go-libs/time"
 	"sync"
 	"sync/atomic"
+
+	"github.com/formancehq/go-libs/time"
 )
 
 type Report struct {
@@ -16,7 +17,6 @@ type Report struct {
 
 	transactionsCount int
 
-	longestTxLock              sync.Mutex
 	longestTransactionID       int
 	longestTransactionDuration time.Duration
 
diff --git a/test/performance/write_test.go b/test/performance/write_test.go
index 27b8d8e04..e144766d9 100644
--- a/test/performance/write_test.go
+++ b/test/performance/write_test.go
@@ -4,9 +4,10 @@ package performance_test
 
 import (
 	"fmt"
+	"testing"
+
 	"github.com/formancehq/go-libs/logging"
 	"github.com/stretchr/testify/require"
-	"testing"
 )
 
 var scripts = map[string]func(int) (string, map[string]string){