serious lag when hammering buttons

just starting multiboxing again. i'm using two computers with keyclone. computer 1 runs wow x3, computer 2 runs wow x2. both comps have windows 7 64 bit. i'm experiencing some heavy duty mouse lag when i press buttons to use abilities. yeah i'm a button masher and when i'm hammering buttons and trying to move the mouse around the screen, or holding down the right mouse button to turn the angle of view in game, it lags out hard and just about freezes up. if i press the ability buttons only one at a time its ok. if i hold down the shift button and try to move the mouse it totally locks it up.

i've experimented on my main computer. with all 3 wow windows running and keyclone not running it is fine. but when keyclone is active, that's when i have the problem. when i multiboxed before i was using windows xp and never had a problem. was wondering if anybody else has had this problem, maybe due to windows 7 and keyclone? any help would be appreciated. thanks

Are you actually hammering that fast or using a keyboard repeater key?

thanks, i figured it out. i didn't think it made a difference on windows 7 but there's an option for performance boost in keyclone. says xp only but i checked that box and it solved my problem. whew!!