Vertical synchronization litimits fps to 30 instead of 60 in some cases.
Detailed description, conditions:
My issue has to do something with clouds/smokes and view to cockpit. Maybe there are more situations, but in this one I can simulate a problem 10 from 10 times.
If I turn v-sync off, the problem is gone, but I get screen tearing instead, so its not the right solution
Looks like there is a similar problem - http://forum.il2sturmovik.com/topic/12062-low-fps-after-update-low-gpu-usage/
Additional assets (videos, screenshots, logs):
GPU run only at 50%, game limit self to 30 FPS, view is 50/50 cockpit/sky:
GPU is on 92%, game running normal, almost none cockpit in view:
Your PC config data (OS, drivers, specific software):
i5 2500K @ 4Ghz, 8 GB RAM, MSI GTX 770, SSD Samsung 840 Pro, OS Windows 7, running latest nvidia drivers 344.75 (default settings in control panel)