Seious question here.

Have any of you played a game where it was working fine but slow, if so did u manage to fix it up and at what settings? Ive got wwe smackdown going from help from a guy here, the game works fine the menu is full speed but once in the game i can play it dont get me wrong its just slow like the whole game is in slow mode... Ive got it at 10x any ideas here. Thanks