diff --git a/firmware/hw_layer/ports/rusefi_halconf.h b/firmware/hw_layer/ports/rusefi_halconf.h
index 337aa967b5..443c6df899 100644
--- a/firmware/hw_layer/ports/rusefi_halconf.h
+++ b/firmware/hw_layer/ports/rusefi_halconf.h
@@ -74,7 +74,7 @@
 #define PAL_USE_CALLBACKS           TRUE
 
 // USB Serial
-#define SERIAL_USB_BUFFERS_SIZE     512
+#define SERIAL_USB_BUFFERS_SIZE     768
 #define SERIAL_USB_BUFFERS_NUMBER   2
 
 // USB Mass Storage
diff --git a/firmware/integration/rusefi_config.txt b/firmware/integration/rusefi_config.txt
index 086dea865d..a7679fbb98 100644
--- a/firmware/integration/rusefi_config.txt
+++ b/firmware/integration/rusefi_config.txt
@@ -110,7 +110,7 @@ struct_no_prefix engine_configuration_s
 #define LE_COMMAND_LENGTH 200
 
 ! see 'blockingFactor' in rusefi.ini
-#define BLOCKING_FACTOR 500
+#define BLOCKING_FACTOR 750
 
 #define AUX_ANALOG_INPUT_COUNT 8
 #define SENT_INPUT_COUNT 1