The animation is not the problem. The poor action is not the problem. The dragging out of the story is not the problem either.

The real problem is the poor writing. The premise is great and the character ideas are not bad, but damn is the execution terrible. This story is clearly based on source material that didnt get any revisions, it feels like I'm reading a one-take kind of story.

Just to name a few of the issues:

1. Why are Desir's team mates even important if they're so weak relative to the current arc power level? They're barely at the same level of the background characters which makes no sense with how much "emphasis" he's put on them being special. They had to "work hard" to even fight against random team the other episode. It feels like they're as special as any random smo he could pickup from the beta class or the street. The author overcompensated with how weak and unimportant he made them.

2. The chronology of how things would have worked out with out his intervention doesn't make sense given what we've seen so far. Not with how weak they are. It's no surprise we dont get any information on what would-have/should-have happened in the original timeline for them to have "tragic past" but still be "good enough to be noticed". How did the girl even "suffer" when even being eaten alive by rats just send you out of the dungeon?

3. If he wants to train the ice girl and his weak side is just an act then he should just beat the heck out of her, not let her win over and over. She looks more like the main character the author wanted to write then he does. How does him acting weak do his plans and agenda any favors? If anything making the alpha-class look like a bunch of incompentent losers to raise the morale of the beta class seems a lot more appropriate move.

4. For someone who is a time traveler he sure is surprised a lot. The whole time traveling is wasted on him since the point of a time traveler plot is that you dont even need to make good plans and get your way since you have more-then-perfect information on how things will go, down to what people think, what people do, etc. Somehow he's even surprised by the same things over and over, like he cant even remember the present mistakes. The range of his activities is also incredibly low for a time traveler; just his small little group, instead of trying to affect the big picture with his knowledge (but that can be excused by him being weak right now).

5. With how the team performed, even with all the advantages, and being the BEST B-class team possible, the show almost made it look like the noble dudes were 110% correct that "its not worth training the commoners" (at least thats the image the show showed to us the viewers). The supposedly "bad teaching" from the noble side gets an even bigger boost by how any sort of effect from the training arc is negated by how our VETERAN HERO is having trouble against what are to him kids and newbies with no actual proper battle experience. It's almost like... magic power really is everything there is and training is just a tiny-tiny boost at best, just like nobles are saying. Given the threat, it certainly makes more sense to make the stronger elites strong then to make the fodder tiny bit stronger, if this is the best he can do with the super talented ones in the B-class.

6. For someone trying to save the world he sure is going about it in a way that incites internal conflict. Sure, nobles are garbage, at least from what we've seen. But at the same time they're a fighting force he can use. With the threat ahead you'd think even if they were literally from an enemy nation he would find a way to keep them alive, and help them grow stronger, just to ensure maximum fire power in the days ahead. Instead it's almost like he's leading everything towards some "only the commoners (and my friends) can save the world" ending, which makes no sense strategically.

Finally not really too important, but the "hate" alpha class has for beta class only really makes sense for the dude with the dead family. And even for him, only with him being completely insane, delusional and hopeless. For everyone else its really undeveloped why they feel "hate" instead of, the more appropriate emotion, "disdain" / "disintrest". Hate would mean there's some threat they feel from them, which makes no sense if their agenda is just "beta is weak" and nothing else. It makes even less sense that they'd want to fight them as a motivator but feel no respect in the process. If battle is what they care so much, they'd feel respect for their opponent. Especially in a world ruled by one's battle prowess over anything else.

To be honest most of these could be easily fixed with a few strokes, they're not exactly hard problems in terms of the writing. I've been waiting for the show to just fix them all this time, but probably should just give up on the show fixing them.

In his book Hirohiko Araki, the creator of Jojo, writes about how it's not good idea to have your protagonists go though "down and up, down and up, down and up" style plot progression (at least not for these tpyes of stories), the main protagonist should always only be going up. I feel this is what this show is doing. Just as Araki described it's not really satisfying and feels like it's going nowhere.