Did you slow-load and stutter Nikkis try this?

https://www.pcgamer.com/hardware/i-fixed-borderlands-4s-stuttering-issue-by-upping-my-shader-cache-size-to-100-gb-which-feels-like-something-i-shouldnt-have-to-do-in-a-well-optimised-game/

I used that for some other game. And IN runs fine too.