Yeah, I said something stupid here I agree 
Render Scaling is gone in MSFS when DLSS and DLAA is selected.
Sad, it could have been a way to fine tune DLSS upscaling. Imagine, if you want better quality than âqualityâ (scale of 1,5 or 66.6%), raise the Render Scaling as your linking, and voila, DLSS applied on better resolution.
DSR factor donât do it well for me unfortunately. Iâm flying at 2560x1440 on a 3840x2160 monitor. So I canât use DLSR to raise quality as x1.78 is immediately 5120x2880 and itâs already too much. Even 1x20 old method is too much at 4206x2366, I will need to reach resolution between 1440p and 2160p, not upper than 2160pâŠ