What graphics card and amount of RAM do you have? I have a i7 4770k, 8GB RAM and a GTX 670, and im having <30 fps in cherno and electro. When i get off the coast though i get 40-60. Maybe it drops down to a bit under 40 sometimes in towns/in bigger houses. My settings are normal, and I have lowered many settings from the text-file (in Dayz folder under My Documents). Turned off ambient occlusion and similar settings...