Here's how you turn off post processing effects! (Chromatic aberration for example)

[CptLucky8]

@HXArdito

But at some point they increased the sharpening in-game, for my taste its a bit too much and it should be a setting in the menu instead of hard-locked.

You might want to support this which applies equally to VR and 2D:
Provide Color Space, Tone Mapping, CAS Shader Strength and post-processing effects controls in VR