"Your MMO has an insane grind, you have to kill millions of mobs to reach max level!"
Have you tried other ways to level up? Like, quests...?
I mean, you're playing the game wrong, of course, it's hard and grindy.
The first part of breaking Gloria is supposed to be played carefully: always have spare points, try to keep her on low Resistance all the time, and stop bugging her entirely once she's reaching med-high, search for help from other people (Es and club, Carl), let her cum from time to time, to let her drop more Resistance, etc.
I get that you want to see the depraved events as soon as possible, but that's how you turn the early game into the rubber-band grind-fest.
