Your first point on the prestige upgrades (reincarnation points) is exactly what I mean with pacing issues. I agree that not every game needs to be beaten in a few hours. I like that this game is a bit slower like that. But because the RP upgrades are so weak and so expensive and you can only get 24 max RP per reincarnation, it makes that part of the game incredibly grindy and slow to progress. I hope that part gets rebalanced somehow.
Otherwise, I do love the slower pacing of the game, I like that it doesn't quickly devalue the earlier parts due to being too fast-paced, like many other games.