Bro this is Peak Manga with a rate of 9.5, why the heck it went down to 8.8? Re-upload?

The original upload is much higher idk why they uploaded this again with a different name knowing it already exist

It's because this is the official translation, as weitten on the chapters. The other upload is all fan translations. They're fine to read, but some people may prefer a steady, consistent translation, which is hard to see as fan translations has different terms for the same thing.