hi am running i7-7700k o/c 4.8g 16g ram gtx1070 8gb and win10 20H2 p3dv5.0 was not a problem, stutters and menu bar disappearing started with 5.2 got no better with the HF

Firstly i keep losing my menu bar, disappears for no reason.
Secondly can not use any ORBX sceneries causes massive stutters and intermittent massive FPS loss, using vanilla scenery is better re:stutters but do still see intermittent FPS loss