I have a HP Pavilihon dv9000 laptop and am running the game rFactor, it runs fast for about fifteen minutes, then just goes real slow, ONLY the game though, programs run fine.

I tested another game and it did the same thing.

Is there anything I can change? Is it the video card, ram, something? Any settings I could adjust on the video card?

It has 1GB of ram, Nivedia Geforce Go 7600