Seems to work now, though I’d not needed to bother before the last update.Its also turned down the framerate in the main menu, which is a pain for most also.
So happy to be flying again.
Also turn off Game Bar and recording settings. As far as Game Mode, try running with on or off to see which is better (on provides more fps on my rig).
As far as I can tell all game mode does is turn on Focus Assist?