[Wine] Half-life: Day of Defeat problems.

[Joshinator]

Hey, I have been having day of defeat fps problems. It's like some maps I get a constant 90 fps and on others I can barely reach 60. I shouldn't be having fps trouble on a game that's almost 10 years old. So I was wondering  if there's anything I can do to keep my fps at 90 all the time on all maps. So if someone could please help me, that would be great! Thanks!

p.s. My specs are:
GeForce 9600GT 512MB BFGTech factory OC'd.
2.6 ghz AMD athlon x2 dual core cpu
2gb ram
Ubuntu 9.04 64bit
Also a 450w psu
And I forgot what my mobo is.