This. I changed the settings to 4k on the PS5 to see the difference. Yes, the UI is a lot clearer and cleaner. I love the look of it. However, the drop in FPS from WQHD to 4k is drastically noticeable. On WQHD you can see just how smooth the game runs. In 4k, character and camera movement are stuttery. In-game cutscenes are affected by the FPS drop (tested on Cloud Deck intro cutscene) as well as the combat. Frankly, the drop in FPS has been giving me a headache whenever I run things in 4k settings to see how sections of the game perform. They really need to up the FPS for 4k settings. The PS5 is more than capable of handling it.