DD2 - Game forcing wrong resolution

[Headset-VR]

I was expecting to be able to play in full screen mode, however, when playing the game, it forces me into a resolution that i'd rather not play in (1280-720), despite me setting 1920/1080

I've had a mess around in the game config settings but does not seem to be able to work

Because the game is not supporting controllers at the moment, i've not actually been able to mess with the Framework settings in my headset (which is so much easier). It's been a couple of years since I messed around with it so i'm unfamiliar with the keybindings (apart from the insert key) so perhaps i'm just doing something wrong. As I say, unfamiliar with the menu buttons as i've spent so much time using UEVR.
Can someone remind me of the buttons as i've had a look around and can't seem to find them

Thanks

[Headset-VR]

Have just been checking out the troubleshooting, couldn't see any of the settings mentioned regarding resolution, although the in headset resolution is fine, just on monitor its wrong and doesnt respond to swapping in game settings