https://www.youtube.com/watch?v=Y65wuyoImKI
The Elder Scrolls IV Oblivion Remastered Steam Deck FPS Boost Performance Mod Install Setup Guide - Increase FPS, Reduce Stuttering, Improve Input Latency, Disable Lumen Ray Tracing, Improve Performance on the Steam Deck, Windows, Windows Handhelds and Linux.
Link directly to their settings: https://www.protondb.com/app/2623190#oUuf0fxasv