how fast do you want it to go? i oc mine to 800 mhz it is some change slightly more responsive but not much since its 200 mhz of difference thats not much maybie u where expecting it to go smooth as iphone? then its how the os is build dude, if u want smooth then go with meego when it comes out for n900 saw latest video smooth as silk! and had portrait mode wich was awesomelicious!