The best BG3 combats are those with few, more capable enemies, such as the Minotaurs or Bulette in the Underdark, because then, at least, YOU are playing the game most of the time.

When there are many, weaker enemies, BG3 combat is astonishingly dull, as you watch the same 6 seconds of real time played out again and again with no active input. Unfortunately, that is what the simplistic 5e rule set gives you. I hope Larian find a way to allow us not to have to watch so much "nothing" happening.