I did what you said. The .cfg file and the nVidia Control Panel configurations. I got a more smooth gameplay... Exceeding 60 FPS at some places. Which was before impossible. It wasn't a miracle, but it's being a nice headway :) Now I can reach 30 FPS or a little bit more outside cities and 19~28 FPS inside it. I really think my PC can do better... My specs: •AMD Phenom II X4 965 3.4Ghz •4GB DDR3 1333 RAM •nVidia GTS450 @EDIT I noticed that is just need to be close a city to get the FPS down, and sometimes it's really annoying :(