Review Detail of DivineDeviance in Second World

Read until chapter 30 and as everyone said, the mc loses ATLEAST 90 IQ points. Like his brain was turned to liquid and emptied by 70%. Idk why the author decided to make him an idiot out of nowhere, from what I've seen it doesn't further the plot, so its not lazy writing. Its just a right hook from out of nowhere. I will keep hope as some people have said it returns to its previous quality. I will make another review after like chapter 300 just to confirm for myself.