diff --git a/.github/workflows/gpu_fast_h100_tests.yml b/.github/workflows/gpu_fast_h100_tests.yml
index 76366541be..a1d9cfbdb3 100644
--- a/.github/workflows/gpu_fast_h100_tests.yml
+++ b/.github/workflows/gpu_fast_h100_tests.yml
@@ -146,8 +146,8 @@ jobs:
 
       - name: Run core crypto and internal CUDA backend tests
         run: |
-          BIG_TESTS_INSTANCE=TRUE make test_core_crypto_gpu
-          BIG_TESTS_INSTANCE=TRUE make test_integer_compression_gpu
+          BIG_TESTS_INSTANCE=FALSE make test_core_crypto_gpu
+          BIG_TESTS_INSTANCE=FALSE make test_integer_compression_gpu
           BIG_TESTS_INSTANCE=TRUE make test_cuda_backend
 
       - name: Run user docs tests
diff --git a/scripts/integer-tests.sh b/scripts/integer-tests.sh
index 25b2886073..4a849beac9 100755
--- a/scripts/integer-tests.sh
+++ b/scripts/integer-tests.sh
@@ -133,8 +133,8 @@ if [[ "${backend}" == "gpu" ]]; then
         test_threads=8
         doctest_threads=8
     else
-        test_threads=3
-        doctest_threads=3
+        test_threads=1
+        doctest_threads=1
     fi
 fi