Hi!

After the patch I noticed -like everyone I guess- a direct hit on performance but overall I kept able to mantain all settings at ultra. I was getting an unusual fps drop just starting any game level so I decided to play a little with settings to get more fps at expense of some detail. First I lowered the post procesing level to extreme which was enough for me since I gained almost 10 fps. Then I noticed that if you return to ultra the post procesing level after that you keep the same performance boost. Can someone explain?? Could the performance drop be corrected if it's a bug after all?? here are my specs

win 7 64 bit
2xhd6870 crossfire
8gb ddr3 1333 mhz ram
phenom II x6 3.2 ghz
Asus corshair formula iv motherboard
cooler master silent pro 1000w psu (got it cheaper than a 800w LOL)
without "fix" 40-60 fps, after "fix" 10fps+ and no sudden fps drops