In Pathfinder Kingmaker you can fast forward through turns, making characters move and act faster. That would help a lot. I don't remember if Pillars of Eternity 2 let you fast forward in turn based mode...
A "speed up the animation" button in BG3 would be great. Personally, I'm not sick of the animation/combat flow yet, but I always want more options, AND I'm sure by 300+ hours, anyone will want that feature.
My only complaint about the Kingmaker one is they made the skip animation the same as skip turn button... many misclicks there lol.
