Normal map/Specularity fading
Heavily modded setups in general have performance issues one way or another (because of several known reasons that are mostly on the issue tracker), and it would be nice to help improve performance for those setups as much as possible. This issue is about setups that use normal and specular...etc maps, especially since now we have mods for these that cover all the game textures and most important/used modded game content (TR/PT...etc).
We also have seen the shading scene getting popular alot recently with modding core shaders, this should be helpful for performance when using such shaders too. (Later games also have specularity fading too).
Here's an experiment done in shaders by Sisah and what they had to say about this:
This was included in the messages above: https://youtu.be/w0kaHrHyU0g
The code for anyone curious should be in Sisah's experimental OpenMW Android repo (which I won't link to, because I don't know which shader pack exactly).