suddenly performance = - d
 

hello everyone ive got a problem.
my computers preformance is no longer shown beside my name in a multiplayer game, and consequantly i am always kicked. the only change that I have made to my computer is instal windows 7 (from vista). I know that I can run the game as i have resorted to singleplayer to get my MOW fix.
anyone else have this problem or know how to fix it?

Get a better computer.

I really don't know, getting a better computer or updating some software may help.