I have the same issue, I upgraded my rig as well and nothing happend I still have this bug . SOLUTION for me is make a clean instalation and now all run smooth with basic PC settings - I not parking core, no need MT.lua file no power plan change etc... Remember it must be full new instalation - both program and saved games folder, when I combined new installation with old saved games or new saved games with old instalation I still a have this bug. For quick check install basic dcs and run free module su 25 with installed game settings to try if this solution will help you. If this run smooth then install all other things
