I am fine with 2D, I just want to be able to play in my headset using headtracking, and VorpX makes that possible.
I have tried to increase the quality without antialiasing, but even with very high supersampling there is stil a lot of aliasing and flickering on distant objects. Maybe I am especially sensitive to this, but I really find the game unplayable without antialiasing. The solution using NPI applies 4x Multisampling and 4x Sparse Grid Supersampling plus a few other setting changes, which almost totally eliminates those problems.
So I am still hoping for some solution that will allow me to use the NPI method in VR.