Was about to make a post of my own on this but lucky me, someone else already brought it up.

Anyway yeah, the PS5 version of the game has some REAL big FPS issues, even though I'm using the "Performance" mode for my 1080p TV. Most obvious place it'll happen for me is either around the Limsa Aetheryte or (as of the date I post this) in Gangos. I actually re-installed the PS4 version again to confirm if the FPS difference was that big and, yeah, it's a REAL big difference.

PS4 version I'm consistently getting 60FPS even in the most effect and player heavy Bozja CEs, PS5 seems to be struggling but the stuttering seems less like a CPU or GPU bottle neck with performance and more when it's loading in and out characters? Because once everything is loaded in it seems fine, but whenever players load out or in, that's when it gets really stuttery. Glad the PS4 version still runs like a champ, but bummer that version didn't get the higher resolution UI change cause even on my TV those looked so much nicer and cleaner