When I had a GTX1080 and a 1440p monitor, in OPTIONS I could set my screen res to a rez larger than my native resolution (3820 x something or other). It ran terribly at max settings, 40fps or something.
When I got a 2080TI, this option was no longer available. I haven't played DayZ for 6 weeks. And I went back just now, and the option is back ! However, when I select it and APPLY, the resolution does not change and my player freezes in position until I press ESC and go back to OPTIONS, and find that the rez is still 1440p.

Does DayZ plan to re-implement this feature again ? Now I have a 2080TI I should be able to get at least 60fps, as I get 144fps maxed out at 1440p.