Also now, newly, experiencing this issue. Have never had it before until 3 to 4 weeks ago. What changed? I have no idea…
Also posted about it here:
https://forums.flightsimulator.com/t/long-haul-performance-degradation-back-with-su12/
Here are some photos of what I’m experiencing now.
Loaded at Departure airport…
And 1.5 hrs into the flight…
Manipulators going haywire, MainThread totally bonkers.