OK, few words from me. Today, I made a simple ramp start mission with MiG, on Mineralnye Vody airport. When I started a mission on 07:00 with sun just below the horizon line, I got stable 60 fps in cockpit, and 45-60 outside. After that I tried with another time of day, and with sun on the sky, I got only 25-35 fps. Why there is so big difference?
My sys:
Win 7 64
i5 760 2.8@3.6
Radeon 7970
6 GB RAM