C4INE

Hey fellow dayz'ers! My computer is pretty decent - decent enough to play a game such as DayZ on good settings - yet i have to play on 'very low' settings and my FPS never peaks over 30. Does anyone know of any ways to fasten the FPS so i can play on maybe a better quality setting with a faster FPS? Ive seen some very dodgy sites around and heard that some want you to download dogdy things that are keyloggers, viruses etc... What do? :-)