Miro

Thanks for Your reply @silverdevil I don't think it's TIR's fault, because it works perfectly in other titles. I rather think that it is the fault of some MT corrections that ED introduced in the patch. What I've figured out so far: Reducing the amount of ground units in my mission helped improve the stuttering when looking around, but it's not a solution to flying around an empty map. Before the 2.9.8.1107 patch it was running smoothly with 500+ ground units spread out along the front lines, now it's less than 200.
But most importantly, the second solution, which if I confirm, may be a temporary solution until next patch: Disabling HT in BIOS, I think this has temporarily solved my problem, but I still need to do some stress tests. So far, so good...

I have a temporary solution, and a tip for developers. The cause of the problem is V sync, if anyone is struggling with this problem, switching to V sync from the Nvidia control panel solves the problem, temporarily.

Always make sure you remove the NVG, if you want brighter instrument lighting, dimmers are mounted to the cockpit together with the NVG, something like photographic film for the instruments.

I don't know how to explain it, but after the change terrain textures to low, then back to high, i got my FPS back to normal, maybye this helps someone.