Been using this mod for my current playthrough and really like it, being able to slowly optimize my factory more and more is great.
I did notice for the Transport Belt Productivity there is no additional bonus for Turbo belt crafting (I was expecting a 1% bonus per level based on other research).

I'm not sure how difficult the following it, it might be as easy as adding the recipe names on your mod's side? Or perhaps it will need to be done on their side?)
As for other mod support, if you're willing (these don't currently get your productivity bonus):
OCs Ammo and Armor - Casting of items with a Foundry (ammo mostly)
OCs Stone Casting - Casting of items with a Foundry (bricks, concrete, etc)
Fluid Quality Imprinting - Casting of items with an extra ingredient to increase their quality
Advanced Solar HR - Extra solar panels and accumulators (could have the standard +10% (for the normal one), +5%, +2% and +1% for the others)

I'm about to release an update to this mod for Factorio 2.1 that includes a lot of suggestions and contributions, check it out and let me know if it works for you or if theres a bug, cheers

I've tried checking it out but there are still too many mods that haven't updated to 2.1 so I can't do a correct assessment.
Once more have been updated I'll leave a message here, thank you for your work!
If you'd like me to reach you somewhere else where it's easier for you, please let me know.

cheers boss will do, let me know how it goes