Xbox One game bar recording resolution can be changed by editing the Xbox One’s “Settings” menu. The “Game Bar” section of the “Settings” menu contains a number of options, including " Recording Resolution “. To change the Xbox game bar recording resolution, follow these steps:

  1. Open the “Settings” menu on your Xbox One.
  2. In the “Game Bar” section, select the option that corresponds to your desired recording resolution. For example, if you want to record at a lower resolution, select “Low”. If you want to record at a higher resolution, select “High”.
  3. Click on OK to save your changes.