I totally get what you mean. There is little enjoyment in those huge battles. It is also the reason why shield bros are so useless in the late game. You simply need the damage output from 2-handers and maybe duelists, archers, polearms to deal with those numbers.
The game becomes an endless grind for crowns to minmax brothers and equipment once you reach the late midgame and will feel slow at times. I don’t really mind the grind since im used to diablo 2 standards :).