please help me out why i dont have 125 fps (stable) with this config?

http://www.2shared.com/file/ErJtbTpq/omlas.html

also my pc:
athlon64 x2
radeon hd 4350
4gb@800mhz
7200rpm hdd, 160gb

on some maps it just dont go up to 125 on certain areas (like toxicity), also the fps drops to 90 when im looking at the scoreboard (+scores), and when i die and my model being seen from outside(??)

much appreciate your help, thank you