HAGS ist like a handbreak for me in ST - I have to turn that off - causes stutters and enormous FPS reduction).
I have not tried how this behaves in MT - will give it a try now.
MT is definetly a gain for me, but now its the GPU that is limiting often (Small, 8K X, 4090, Using DCS Native OpenXR). But its like the first time that I can use it with almost 90 FPS in lots of the Instant or Training Missions.
EDIT: ______________________________
FPS seem stable with HAGS now - but in flight I have extrem stutters - head tracking and also e.g. the FPS display of open XR flashes even though I get 90 FPS.
Is there a Pimax issue with Tracking and HAGS or is this rather OpenXR or DCS?