I ran a benchmark using these commands:
 devmap ffa_bespin 
 timedemo 1 
 disconnect 
 demo jk2ffa  
 These settings:
 1024x768x32
 High quality, no anti-aliasing. 
 My Machine:
 WinXP pro 
 Athlon XP2100+ 
 Creative GF4 Ti4600 (28.32 drivers)
 512MB ram 
 MSI KT3 Ultra Aru 
 Soundblaster Live 5.1 player  
 Got 80.4 fps... is something wrong with my computer? If ya look at the benchmarks at these sites, you can see that similar machines get 100~120 fps =(  
http://firingsquad.gamers.com/hardware/jk2/default.asp)   
http://www.anandtech.com/video/showdoc.html?i=1608&p=9)   
http://www6.tomshardware.com/graphi...acharts-04.html)   
 I've heard people with GF4 Ti4600 say that they never get slowdowns. Well, I do (if slowdowns means FPS slow enough to notice it), so I'm suspecting that something is wrong here...