ReneRu

I would like to know why the hell it lags so horrible, it is basically impossible to play it. I'm playing with native resolution 1920x1080, I even put all details on medium (though my computer is so new I should be able to run this with maxed details). System: Intel Core i5 2310/Quad Core/4 Threads/2,90 Ghz/Turbo/6 MB Cache/32 nm/DDR3-1066/1333/Sandy Bridge ATI HD6850 1GB 8GB of RAM