Tabletop Tweaks is a mod that seeks to adjust the cRPG rules to more closely follow the tabletop ruleset. Additionally it adds content missing from the base game.
If you implement this I'd ask you to add in Rings of Divinity too which do the same thing for Divine casters, granting a bonus to Knowledge Religion (Lore religion in the owlcat games) and bonus spell slots.
Please is it possible to implement Rings of Wizardry?
https://2e.aonprd.com/Equipment.aspx?ID=462