How to increase cs 1.6 server fps

Help - Increasing fps for Counter-Strike 1.6

I have the nestest updated verison of counter-strike 1.6 but when ever i join in to a game my max fps is 60 my friends normal max fps is 100, i was wondering if i could change this fps to any higher or is there settings on my navidia video card to make it able to support this fps or would it be my moniter that does not support this high fps? I was wondering if my video card or my game has a max fps limit setting? my video is set on openGL 640X ... 16 bit, i tryed higher or lower or different video modes my fps does not go any higher some goes lower 2. Please help me resolve this problem

Computer stats:

Moniter: AOC A985
Video Card: GeForce FX-5500 256MB
CPU: AMD Athlon (tm) XP 2400+ 2.00Ghz
Ram: 512DDR
Window: Window XP Pro
Board: Gigabyte Mother board
Support: DirectX 9.0+

Newest video card driver downloaded off navidia website

I have downloaded all of counter-strike from steam, it is now ready to play offline mode

Many thanks