TAA cannot be disabled in the game’s menu, so here’s a working alternative.
What is TAA?
Temporal anti-aliasing is a spatial anti-aliasing technique for computer-generated video that combines information from past frames and the current frame to remove jaggies in the current frame. In TAA, each pixel is sampled once per frame but in each frame the sample is at a different location within the pixel.
How to disable TAA
The game uses by default the anti-aliasing TAA that ends up leaving the image and textures blurry, to disable the TAA go to:
C:\Users\YOUR USERNAME\AppData\Local\HighMoon\Saved\Config\WindowsNoEditor
Open the file: Engine.ini and at the end of it add:
[SystemSettings] r.PostProcessAAQuality=0