diff --git a/boot/zephyr/boards/nrf54l15dk_nrf54l05_cpuapp.conf b/boot/zephyr/boards/nrf54l15dk_nrf54l05_cpuapp.conf
index 1b7a3616d..f911aa248 100644
--- a/boot/zephyr/boards/nrf54l15dk_nrf54l05_cpuapp.conf
+++ b/boot/zephyr/boards/nrf54l15dk_nrf54l05_cpuapp.conf
@@ -10,3 +10,6 @@ CONFIG_SPI_NOR=n
 CONFIG_FPROTECT=y
 
 CONFIG_BOOT_WATCHDOG_FEED=n
+
+# Ensure the fastest RRAM write operations
+CONFIG_NRF_RRAM_WRITE_BUFFER_SIZE=32
diff --git a/boot/zephyr/boards/nrf54l15dk_nrf54l10_cpuapp.conf b/boot/zephyr/boards/nrf54l15dk_nrf54l10_cpuapp.conf
index 1b7a3616d..f911aa248 100644
--- a/boot/zephyr/boards/nrf54l15dk_nrf54l10_cpuapp.conf
+++ b/boot/zephyr/boards/nrf54l15dk_nrf54l10_cpuapp.conf
@@ -10,3 +10,6 @@ CONFIG_SPI_NOR=n
 CONFIG_FPROTECT=y
 
 CONFIG_BOOT_WATCHDOG_FEED=n
+
+# Ensure the fastest RRAM write operations
+CONFIG_NRF_RRAM_WRITE_BUFFER_SIZE=32
diff --git a/boot/zephyr/boards/nrf54l15dk_nrf54l15_cpuapp.conf b/boot/zephyr/boards/nrf54l15dk_nrf54l15_cpuapp.conf
index 43d8cebe3..c8fcd32c3 100644
--- a/boot/zephyr/boards/nrf54l15dk_nrf54l15_cpuapp.conf
+++ b/boot/zephyr/boards/nrf54l15dk_nrf54l15_cpuapp.conf
@@ -8,3 +8,6 @@ CONFIG_BOOT_MAX_IMG_SECTORS=256
 CONFIG_SPI_NOR=n
 
 CONFIG_BOOT_WATCHDOG_FEED=n
+
+# Ensure the fastest RRAM write operations
+CONFIG_NRF_RRAM_WRITE_BUFFER_SIZE=32