I dunno, I don't. I use LV only if the energy cost is extreme. But for like, washing? Macerating? Especially centrifuge? Double especially sifting? I'm working on going from 128v to 512v because that shit took me 3 RL days! I was processing 8 stacks of lazurite, 5 stakcs of sodalite, and 2 stacks of lapis. That crap is nuts.
But I do get what you're saying. Which is why I don't really feel strongly about changing the OC mechanics. I'm just content as-is.