Any way to disable upscaling/post processing?

[Tourette's Guy]

Seriously, it’s unbelievable the game does not include an option to just turn off upscaling. Is there any way to improve graphics through in-game options or .ini file?

[cOMMANDER]

+1 I'm looking for this as well. Running natively on 3840x2160, upscaling isn't needed and I'm unsure if it's going to incur additional but unnecessary overhead to the processing.
DLAA, on the other hand, would have been better used on those gaming on 4K native res and have a GPU that can maintain 60fps at the best graphics rendering.