Gigabyte 6VTX
 

I am using Gigabyte 6VTX, Celeron 800MHz, and Leadtek Geforce2 mx sh max, its a geforce 2 mx 400 chipset. When i play counter strike, the game is kind of slow, i am not talking about lag, cuz my ping is around 30, i was getting 60FPS in the begining and when there are a lot of people, the FPS dropped to 40, so what is the problem?