diff --git a/21g30t1e75.js b/21g30t1e75.js
index ef31009..efebef6 100644
--- a/21g30t1e75.js
+++ b/21g30t1e75.js
@@ -35,14 +35,14 @@ GameLib.CustomCode.POWERUP_LIFE				= 1;
 GameLib.CustomCode.POWERUP_SLOW				= 2;
 GameLib.CustomCode.MAX_POWERUP_ITEMS		= 3;
 
-GameLib.CustomCode.SPEED_GRAIN = 0.05;
-GameLib.CustomCode.POWERUP_SPEED_GRAIN = 0.2;
-GameLib.CustomCode.POWERUP_ANIMATION_SPEED_GRAIN = 0.5;
+GameLib.CustomCode.SPEED_GRAIN = 0.9 / 20;
+GameLib.CustomCode.POWERUP_SPEED_GRAIN = 0.9 / 5;
+GameLib.CustomCode.POWERUP_ANIMATION_SPEED_GRAIN = 8 / 5;
 
 GameLib.CustomCode.MAX_SPEED = 0.1;
 GameLib.CustomCode.MIN_SPEED = GameLib.CustomCode.SPEED_INITIAL;
 
-GameLib.CustomCode.ANIMATION_SPEED_GRAIN = 0.2;
+GameLib.CustomCode.ANIMATION_SPEED_GRAIN = 8 / 20;
 GameLib.CustomCode.MIN_ANIMATION_SPEED = 2;
 GameLib.CustomCode.MAX_ANIMATION_SPEED = 10;