diff --git a/src/driver/fb_accel_arm.cpp b/src/driver/fb_accel_arm.cpp
index 8928c7b96..4575a6314 100644
--- a/src/driver/fb_accel_arm.cpp
+++ b/src/driver/fb_accel_arm.cpp
@@ -410,8 +410,8 @@ bool CFbAccelARM::fullHdAvailable()
 }
 
 #if ENABLE_ARM_ACC
-#define BLIT_INTERVAL_MIN 40
-#define BLIT_INTERVAL_MAX 250
+#define BLIT_INTERVAL_MIN 10
+#define BLIT_INTERVAL_MAX 50
 void CFbAccelARM::run()
 {
 	printf(LOGTAG "run start\n");
diff --git a/src/driver/fb_accel_mips.cpp b/src/driver/fb_accel_mips.cpp
index 738d8e66d..78ad9bdef 100644
--- a/src/driver/fb_accel_mips.cpp
+++ b/src/driver/fb_accel_mips.cpp
@@ -411,8 +411,8 @@ bool CFbAccelMIPS::fullHdAvailable()
 }
 
 #if ENABLE_MIPS_ACC
-#define BLIT_INTERVAL_MIN 40
-#define BLIT_INTERVAL_MAX 250
+#define BLIT_INTERVAL_MIN 10
+#define BLIT_INTERVAL_MAX 50
 void CFbAccelMIPS::run()
 {
 	printf(LOGTAG "run start\n");