Resolution question

I have an Ultrawide monitor (2560x1080) res.

I want to have the UI (such as players, gens left ect) at a 1920x1080 resolution whilst keeping the extra res on either side of the screen for gameplay.
Is there anyway I can do this? Setting GameUserSettings.ini to 1920x1080 yeilds no results.

I'd send a ticket to dbd support team without giving any of my steam details and see what they say. Once I had a problem with aspect ratio and resolution and they assisted me and everything went well