MSAA/FXAA Support - Anti Aliasing Option and Issues

Lots of modern games today look blurry with the upscaling methods in order to get a decent framerate, primarily because they use TAA to fix dithering.

In Campaign my framerate is stable but in maps it's very unstable so I tried tweaking the graphics settings.

So far i'm having the best results in 4K with Upscale Mode NIS, en no upscaling in the Max Resolution Settings.
This gives me 50-60fps.
However it's only downside is that aliasing becomes incredibly noticeable, even in 4K res.

and if i want to boost my FPS by lowering the resolution down to 1440P, the aliasing becomes even more noticable.

It would be nice if we could have MSAA or atleast FXAA as an option to enable. This way i and many other PC gamers (including those with worse GPUs than me), can have decent looking visuals at their own native resolutions. Without having to rely on upscaling methods or AI fake frames etc.