Review Detail of IEatFriedChicken in I Became the Ultimate Boss

I am at chapter 640 mtl. The premise is thought out and the world is consistent in its self. He starts making reviews about the items he got and the system sets missions that gives him a power up. Every video he gets a mission that rewards him with Resistance. It makes him immune against mental and physical damage, blending on how many points he has and how powerful the attack is. This bonus fits well into the story. There is no secret government that wants his stuff since the world itself generates strange items. He fights against secret cults, evil organizations and cosmic enteties that want to destroy his planet. The first 200 chapters are fresh and new and interesting. But after that it gets dragged out. Till chapter 400 it gets stale since nothing is really happening and the open plot lines are not moving. At chapter 500s the plot finally starts moving again. It would have been better if the author picked up the speed of the plot.