Separate pauses from low frame rate
Note whether movement is consistently slow or briefly freezes at intervals. Record when the pauses occur, whether other applications pause too and whether the behavior repeats in the same location. This is more useful than assuming every performance problem has one graphics-setting fix.
Compare a clean baseline
Close unnecessary background applications and temporarily disable optional overlays you already use. Verify game files and check the graphics driver for your hardware. Repeat the same route after each change. These are general diagnostics; the official sources linked below do not confirm a specific shader, memory or asset processing cause for this game.
Avoid unrelated mods
Do not install mod loaders or configuration files made for other games. If the issue persists, report game version, GPU, operating system, display settings and the frequency of pauses. The low-FPS checklist helps with sustained slowness; the crash checklist covers unexpected exits.