Reactions would totally increase the flow of combat and not slow it.
Because (re)action is one more action player's can often do.
Being able to avoid a few damages means you'll be able to use your next action not to drink a healing potion... And dealing extra damages would lead to faster kill, sometimes.
It would add a lots of depths and intensity to combats.
As Bukke said, just try solasta to understand how reactions could be VERY more interresting than they are in BG3.
Great Post OP.
This thread and your suggestions will definitely be a part of the "big thread to improve combats" and the "mega list of feedback and suggestions made by the community" I'm working on.
Exactly, I spent far too much time in my playthroughs sitting back and waiting, classes with reactions that are dynamic will need a little system overhaul from this for sure but I think they just don't want to interrupt the flow of the turns as it is already tenuous and causes crashes/hang ups as is. This freezing during enemy turns seems to have been a problem since DOS. Must be the engine.
