This plays flawlessly at max settings 4K DLSS with a 4070 and the September 10th drivers.
The only setting I turned down to get a locked 60FPS was lumen from Epic to high, the rest is maxed out, and I turned motion blur off, because **** that ****

No stuttering what so ever. This is silky smooth, it's crazy to think the same team made SH2R, what a shame they couldn't have gone back and made it run like this, but I still love SH2R, despite it's major hiccups!
FWIW I don't mess around with overclocked controllers, I've found when using them, or overclocking a stock one, it causes stuttering - which it wouldn't surprise me at all if is what causes most peoples stutters, they're just unaware that it's a known risk - I tested this theory with Cronos: The New Dawn, as soon as I overclocked my PS5 controller, it happened. Went back to stock, and it was fine again. I definitely think people are assuming just because they have X hardware, that it's the games fault, half the time...
Anyway, here's the settings used, and a quick few beginning screenshots, so not to spoil anything

https://i.~ibb.co~/S4H1tjDY/SHf-Win64-Shipping-2025-09-24-13-32-54-648.png
https://i.~ibb.co~/Xx64MsGz/SHf-Win64-Shipping-2025-09-24-13-33-07-189.png
https://i.~ibb.co~/Xx64MsGz/SHf-Win64-Shipping-2025-09-24-13-33-07-189.png
https://i.~ibb.co~/kgfdMGhc/SHf-Win64-Shipping-2025-09-24-13-33-28-097.png
https://i.~ibb.co~/v4mhyTsY/SHf-Win64-Shipping-2025-09-24-13-28-01-216.png
https://i.~ibb.co~/Kz6yQRj6/SHf-Win64-Shipping-2025-09-24-13-32-21-365.png
https://i.~ibb.co~/tpTJvqJz/SHf-Win64-Shipping-2025-09-24-13-32-44-707.png