I played Control with RT/DLSS at 1080p to get 75+fps. DLSS causes some blurring but is much better than running 1080p natively or not using RT. In VR, the default 1.4x supersampling on my headset makes most games struggle to hit the refresh rate (Star Wars Squadrons, Project Cars 2, Overload, etc.). I use 1.0x instead, which runs much better but is a quite noticeable drop in image clarity, even with Nvidia's VRSS enabled. Other games without RT or VR generally run very nicely at 4K at 100+fps.What game, and are you using DLSS? You have the larger version of my future monitor, so I'm concerned.