Problems with Ali Chipset and Voodoo 3 2000

Hello there - My problem is that when ever I play Counter Strike on my PC - I get very low FPS - about 7-10 - witch is really bad!

It has not allways been this way - But I cant figuere out what I have done wrong.

Im using the latest 3dFX drivers and I have upgradet the AGP drivers - What else is there to do ??

Thank you…