What are your specs and game setting (are you running any mods like Mustangs no trees shadows) if I may ask? I have i7 6700k (not yet overclocked), 16 Gb RAM, 980GTX Ti, running at 1440p and DCS is running mostly at 50-70 fps jumping to 144 from time to time. I'm seeing some drops in fps (to around 40) when looking at large cities.