As some have already said, if the villains are just gonna "I see..." and "Interesting..." this entire time, while figuring everything out, I'm dropping this. This story has already dropped all the pretenses of not just being a standard shounen battle manga (just with unusual gimmicks, like Food Wars), so at least put some effort into being an interesting battle manga. Starting with the antagonists.
For example, JOJO exists quite some time already and has inspired so much action manga, but for some reason the one thing most authors refuse to learn from it is how to write interesting antagonists. The Villains in JOJO are never of the "closed eye, creepy smile, I know everything" kind, but have to struggle just as much as the protagonists for their goals and, crucially, during the battles (For Anime onlys: this is most apparent in part 4 and 5, but was always there).
The reason why we are also getting so much inner monologue from the villains is precisely to let this dynamic unfold. It makes the action much more suspenseful than the lazy shit most action manga today seem to pull. In the real of shounen, there are only really two greatly popular series that can compete in that regard: One Piece and Hunter x Hunter. One Piece to a far, far, far lesser extent, but nonetheless, I believe this a big reason for why these two manga are so popular.
So...there is nothing really interesting on the horizon in this manga. Next MCs gonna recruit the typical kuudere swordswomen that also likely gets accused of being a witch because she's strong. If there isn't a twist in the general story progression soon, the real magic of this will be how quickly it can bore you to death.