The pacing of the story was already getting bad towards the end of part 1, but in part 2 it simply drops off a cliff. There's literally a 5-episode battle with a single villain. Just try to imagine that: A full 100 minutes of over-explained attacks that happen *extremely* slowly.
In fact, the entirety of part 2 is back-to-back fights, and not even good ones with funny moments or emotional depth. The sheer number of death fakeouts is simply insulting, and they make everything happening onscreen feel utterly inconsequential because a character being "killed" by an attack doesn't matter as long as they have plot armour.
All this time wasted on bad fight scenes means that all the comedy, emotion, and lewdness that gave part 1 its charm is mostly absent.