Whenever I play Dayz my computer lags very badly, around 10-15 FPS, mostly in the cities or towns. My FPS goes back up when i'm in the woods or if i'm looking at the ground while in the cities. It never used to lag like it does now,I used to play DayZ fine. Also I can play the base game of ARMA fine, I can walk into the city and everything and it won't lag. Can somebody help me out?