I replied to the wrong post. I have copy and pasted the very informative post by @K8ihpb etc etc.. what a user name!
Anyhow he gets all the credit for quite probably solving your issue. Whole post is below, but I copied and pasted anyway.
I'm also dealing with this issue. But I'm not going to discard the game. It's playable. But pay attention to what I'm going to say: they said the game runs poorly on NVMe M.2 drives. And that people have never complained about this when using a SATA SSD. Which seems to make sense, considering it's not a coincidence that even more powerful setups like those with an RTX 4090 or RTX 5090 still suffer from stuttering in certain areas. And what's the common factor in all these setups? The game is stored on an NVMe M.2 drive.
That's what's going to make me buy an additional SATA SSD to test and see if it solves the problem. It seems the issue with NVMe is that it's so fast the processor can't keep up. So later I'll come back here and let you know if it worked.
Above italic by:
By the man k8ihp - impossible to remember user name. Don't take offense. Your post is great, but your user name is more like a password.
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