I know it's practically an "old" game, but I only got it a couple of weeks back and couldn't wait to sink my teeth into it, only to be disappointed due to the game giving me uber lag, making it unplayable 
But now I can finally moderately enjoy it! After thoroughly searching the interweb I got a fix, and it's not a patch.
All you need to do is in the launcher, under Options, add in the command line -str. This enables single thread rendering, making a huge improvement.
The only down side is that you have a permanent hardware cursor on the screen then, but this to can be fixed using nomousy (http://www.autohotkey.com/forum/topic2197.html)
Just thought I'd share, don't know if anyone else had/has this problem.
Use it, don't use it
But now I can finally moderately enjoy it! After thoroughly searching the interweb I got a fix, and it's not a patch.
All you need to do is in the launcher, under Options, add in the command line -str. This enables single thread rendering, making a huge improvement.
The only down side is that you have a permanent hardware cursor on the screen then, but this to can be fixed using nomousy (http://www.autohotkey.com/forum/topic2197.html)
Just thought I'd share, don't know if anyone else had/has this problem.
Use it, don't use it