Framerate tanks, then comes back after refocusing window; then tanks again

[Nealius]

VR is becoming unplayable. Within a couple of minutes my frames go from locked 30 to 12. If I click off screen "Window not in focus" then click back onto the screen, my framerates jump back up to 30. Then a couple minutes later they tank again and I have to repeat the process. Every 3~5 minutes.

 

All my settings are low, I've done all the known VR tweaks except for 2.7 shaders mods, which show no performance boost on my machine. 

 

Is anyone else getting these annoying, frequent framerate drops that are resolved by clicking out/in DCS? What's most confusing is that when looking at my hardware usage, nothing appears to be maxed, bottlenecked, or overheating. 

Edited May 1, 2021 by Nealius

[hazzer]

Possible same issue as me https://forums.eagle.ru/topic/270222-fps-tank-when-changing-aircraft-or-server/?tab=comments#comment-4651067