I have this same issue with my 3090. I am also using an old version of windows/ do not want to update. I ran the game with task manager enabled and noticed it was eating up the cpu and the gpu had no load. I think the game is somehow running on the igpu despite it being disabled.
I have this same issue with my 3090. I am also using an old version of windows/ do not want to update. I ran the game with task manager enabled and noticed it was eating up the cpu and the gpu had no load. I think the game is somehow running on the igpu despite it being disabled.