I noticed that when I have this mod enabled that it drastically lowers my fps.

Until I can get anything more substantial in (if that is even something I can do), version 6.0 comes with a minor performance improvement: when the hotbar is hidden, items don't get rendered at all (instead of rendered twice.. invisibly..). Won't help you much, but should do a little.

I only have a much older Intel CPU with an integrated UHD Graphics 620. On that, I was not able to replicate this at all. With a scene comparable to yours, launching the game and waiting ~10 seconds for everything to stabilise, I am reaching 50fps with or without the mod (including fade mode). GPU usage is slightly higher with the mod running, so I'm afraid I'm CPU bound on this old machine. But it is nowhere close to the impact you are seeing :/

Oh wow, that is a massive decrease without any other mods present. I cannot reproduce that at all on my machine (there is no measurable difference between running AutoHUD or not). I'm assuming this is something I do that the Intel driver doesn't like at all. I'll have to get out an old Intel machine to test things, so this might take a bit to investigate.

One thing you could test: does it still have such a performance impact if you disable "Fade" mode? That is the only slightly non-standard thing I do.

No mods: 117fps
AutoHUD no fade: 90fps
AutoHUD with fade: 38fps

That is still a surprisingly high drop without fade mode and worth investigating. But at least it confirms that it is the extra rendering I need to do for fade mode. Thank you. It might not be possible to fully fix this, but I will try to optimise things as far as I can.

Oh, that is not good. Can you give me a full mod list of mods you are using?

If you have time, could you test whether you can replicate that with no mods vs. only AutoHUD installed?

Mods:
Cloth Config V11
Dynamic Crosshair
Fabric Language Kotlin
FallingTree
FerriteCore
Gamma Utils
Iris
Language Reload
Lighty
Mod Menu
Quilted Fabric API
Reese's Sodium Options
Server Resoruce Pack Checker
Sodium
Sodium Extra
Tax Free Levels
Xaero's Minimap
Xaero's Worldmap
YetAnotherConfigLib

+AutoHUD

No Mods

AutoHUD and Quilted Fabric API

Since I haven't heard anyone else complain about this, I'm closing this for now.