nvidia and sdl performance

[Nowl]

Hi,

Recently I've set up my system with gentoo dual-booting with windows xp. I have to admit I like gentoo a lot and I'll most likely stick with it for some time. So anyways, I just finished setting up the nvidia drivers and I thought I would try to compare the opengl/sdl performance with xp. After running a few tests I found that my windows xp install is generally about 30% faster. I found this rather disappointing and was wondering if anyone could point me in the right direction to improve this...

thanks