When DLSS (Always On) is enabled, performance and image quality can vary wildly and end up getting extremely confused at times, rapidly changing profiles on its own due to it being tied exclusively to Dynamic Resolution Scaling.

In instances like Cutscenes or Camera-cuts after teleports/zone changes it can get stuck in a confused state and result in extremely poor image quality and warping in the image.

And in instances where it can get in a confused state, performance is far worse than a far higher resolution with TSCMAA(+ Camera Jitter), and FSR1.

Example, in a scene that is 70FPS on my 3080-12GB with 85% of 4K with FSR1, DLSS Always On in that state would be closer to 60fps despite it having image quality that is far less stable for inner-surface detail (and seemingly in DLSS Performance Mode from what I could gather which is 1080p versus the 1836p of 85% 4K with FSR1 which is a Resolution/Framerate difference far too extreme to be chocked up to DLSS's inherent overhead).