Can confirm that running it as administrator did work.
Does xplane (or the plugin) store any settings in a user-specific folder? That could explain why running as administrator is not behaving in the same way?
Hi folks, I'm in the exact same boat, slow 530 on Windows 11 + Xplane, worked perfectly fine on Windows 10. I have an nVidia 2080 Super.
GTN 750 sim works perfectly fine.