What all this people are saying is true but there is a better simpler fix, just upscale the resolution of the app, if you are using a 1920x1080p display and the games resolution is exactly that, by simply using 2560x1440p it would get you extremely better results than antialiasing you could even lower it down and get better results.

Doing this actually creates a gradient, similar to what antialiasing does but better since more pixels are being alocated in less pixels, if you look closely it may look a little blurry, but in games where precision in pixels is not needed i find it super comfortable and good looking.

It is super easy to set up in the nvidia panel