Here you can find the Video Guide to better Performance in Elder Scrolls Online. The video shows the simple tweaks first and then goes onto more detailed things towards the end!
You can make these changes at your own risk, I do not take any responsibility if something breaks.
UserSettings Parameters
IMPORTANT: Don’t just copy paste the text into the file, search the settings and adjust each number individually!
SET DistantFoliageEnabled “1” —> “0”
SET CachedRLREnabled “1” —> “0”
SET CachedReflectionResolution “4” —> “0”
SET CachedShadowFiltering “5” —> “0”
SET REFLECTION_QUALITY_v3 “2” —> “0”
SET PARTICLE_DENSITY “3” —> “0”
SET HIGH_RESOLUTION_SHADOWS “1” —> “0”
SET SHADOWS “4” —> “0”
SET GPUSmoothingFrames “10” —> “0”
SET MIP_LOAD_SKIP_LEVELS “0” —> “1”
SET RAIN_WETNESS “1” —> “0”
SET ANTI_ALIASING_v2 “1” —> “0”
SET CHARACTER_LIGHTING “1” —> “0”
SET SIMPLE_SHADERS “0” —> “1”
SET DETAIL_MAPS “1” —> “0”
Skip the Intro
If you want to skip the intro when you start up the game make sure to adjust this to:
SET SkipPregameVideos “0” —> “1”