Okay, the quality problem was definitely the fillrate. It still doesn't look as good as some of the screenshots on here, but just putting the fillrate from 88%(very high) to 100% made a huge difference.
The bad thing is that I can't put it any higher than 100% without the FPS dropping like crazy. The GTX260 has 896MB of RAM and really isn't that bad of a card. I'm running at 1920x1200, so this might be the problem, but I get no problem with other games at this rez with max settings.
I'm currently running:
Viewing Distance 1600
Fillrate 100%
Shadows Disabled
Ansio Disabled
Textures and Video Memory on Normal
Everything else as low as it will go
With that I get somewhere around 10-45FPS, usually never going above 25. Even though its avg is 25, it still feels very choppy, and whenever medium-to-high action is going on it drops to under 15FPS. Is this normal for my specs? Richie I have pretty much the exact same system but with a much better video card, and get nowhere near that with everything on low! Cyzz or anybody else with a similar system, what settings/rez do you use?