The game can look blurry at times with the current anti-aliasing settings it has. Seeing as there is no in-game option to disable these settings, this guide will aim to remove the visual impact caused by TAA.

First things first, launch the game and set your upscaling method to TAA. Then close the game.

2. In File Explorer, go to:
%userprofile%\AppData\Local\DuneSandbox\Saved\Config\WindowsClient

3. Open "Engine.ini" using notepad or a text editor of your choice.

4. At the bottom, add the lines:
[/script/engine.renderersettings]
r.TemporalAACurrentFrameWeight=0.40
r.TemporalAAFilterSize=0.1
r.TemporalAASamples=1

Voilà! It should now have removed the TAA upscaling on your game :D

Keep in mind that some parts of the game may have been made with some kind of anti-aliasing in mind, so certain objects or surfaces may not look perfect.