Washed-out colours/bad lighting?

[Ilean]

*cough* Shadows will be rendered if they are disabled or not it seems <.<
Basically you can't do much about the performance. Most settings in the config don't do anything relevant except making the game look bad. Only general drawing is having a negative effect on highest settings.
So enjoy high settings and live with the low fps :P

Yup, everything is pretty minor on performance except for the draw quality settings, AO and DoF.