It looks the same if I'm walking too. The only thing I changed in the settings was some of the season settings and the fog.
(Sorry. The video quality died)
https://github.com/user-attachments/assets/e82d7353-9faf-4a2e-bd3a-585a1052f367

this is... normal, unfortunately. its artifacts from TAA. temporal upscaling makes the artifact significantly worse, and the lower your fps the worse it is.