Translations are so slow. Not everything has to be redrawn just translate what they're saying. I don't get how it takes months to do so, but then again I'm not in a scanlating group.
I think the pacing feels weird because there isn't enough art and talking. A lot of it is just larger art scenes instead of smaller boxes with a lot of information that we're used to seeing in Manhwa.
Other than that, this is a gold mine. The story is great.
Weird that they injected racism into this. But it's not that strange. The Neanderthals already recognize the Homo-Sapiens as an enemy AND they look different from each other. All they need to be told is "white" good, "colored" bad. With enough justification from the supposed time-slipping "King"...