Ok, let's stat. Configuration is 3770k, GTX 970 and 8gb DDR3. When I turn on PC and run game for the first time, I get like some lag. Game runs smoothly but every 2-3-4 sec. I get like a lag, like the game stuck for one sec. Then I go back to Win by pressing Win logo key on keyboard, go back to game and everything is fine after. There is no lag, game run at 60fps except when I'm in area wit a lot of grass, then I have around 45 but that's fine. OS is Win 10 and the Settings are on Verry High/Ultra, MSAA x4 and reflection also x4, resolution 1680x1050. If I turn off MSAA then is no lag first time when I open the game, but obviously that is not a problem sense when I go back to game after exiting to Win everything is fine... Any advice?