DLDSR scaling stretched

So I’ve tried using DLDSR on my 1080p monitor.

I’ve tried 1440p and 4k and in both cases it stretches the image horizontally and doesn’t scale it properly.

I am using the Launcher and I’ve put it on “Full Window”, because when I put it on Fullscreen it won’t let me tab into the game and constantly gives me a blackscreen instead.

Any solutions?