counter-strike low fps?

Hey,

I thought I'd install steam again, and counter-strike, but it's not working properly.
My fps is about 30 when I play and 60 when I'm not connected.
Do you guys know how to get that up? My card is an fx5200
I know, old crap, but counter-strike used to work even on the most crappy computers!

Is there anything I can do?
I don't want to buy a new cards yet.

Thanks!