what you need to do with any ati card, to fix low fps, lag, stuttering issues is this..
get the new 11.3 drivers...
SmoothVision HD Anti Aliasing =
choose 4x first
then choose edge detect in the drop down box
then use the check box to use app settings, check it enabled!
SmoothVision HD Anisotropic filtering =
use the check box to use app settings, check it enabled!
Tessellation=
use the check box to use app settings, check it enabled!
Catalyst AI=
high quality, again this is user pref, maybe your card needs it lowerd,
do not use the check box to use enable surface format optimization, this causes the black and white issues in the car!
Mini Map Detail Level=
High quality, again this is user pref, maybe your card needs it lowered,
Wait for vertical refresh =
off
Anti Aliasing mode=
super sample aa, again this is user pref, maybe your card needs it lowered,
Open gl settings=
Triple Buffering Checkbox is to be checked...
test these settings with this specific in game settings as well for 100% optimal performance and 100% amazing visuals
INGAME settings :
Resolutuion -1920x1080 <-if you have 20in or less moniter use 1280x1024
Window Mode -no <- you can enable this if you wana do window mode
Texture Resolution -high
Texture Filtering -high
V-sync -no <- this is a most causes about 20 to 30 fps loss enabled
Anti Alising -off <- dont worry no jaggys i promise just try the setting
Motion Blur -off <- seems like a retarded feature so i disabled it
Refelection Quality -high
Car Detail -high
Track Detail -high
Shadown Detail - low <-i like this on low it dosent matter if its not high
Lien : http://www.overclock.net/ati/979202-shift-2-performance-fixes.html
PS : j'ai testé effectivement ca fonctionne j'ai gagné un paqué de FPS
