I'd be interested to know exactly which aspects of the game's Japanese-ness (Japanesity? Japanessence?) are turning you off, though.
So far in the playlist, it's basically just been the colossally-oversized weapons (and this coming from someone who quite enjoys WH40k), the "I will duel this gargantuan beast as though it were a man-sized opponent" battle style, and the obnoxiously cutesy aspects such as Ms. Never-Shuts-Up and the magic indestructible catslaves. The LPer been skipping cutscenes and dialog and muted all voice volume, so there hasn't been much character development outside of the unavoidable comments of Ms. NSU, so I can't comment on stereotype arcs.
I'm also not particularly huge on the "slap it until numbers come out" school of combat feedback or the well-trained Chernobyl Fireflies, but that's more just a specific conflict with what I would have liked to have seen, rather than something I can pin on Japanoproximity. A high ranking on the Japanograph? Shit, none of these really work. I like Japanessence, but that makes it seem more like an inherent quality than a sliding scale...
Capcom is in fact, y'know. Japanese. It'd be hard for them to make a game that doesn't reflect their culture.
Well, Bloodborne's also Japan-made; but save for some weapon compensation, the aforementioned battle style, and some
fabulous hair it's not quite the same degree of Nipponity. Some, certainly, but not the same level. There are better examples, but that's the one that comes to mind offhand.
As for the H:ZD mention and the "Hunting" genre, that was more to do with what I'd wanted to see more of, and what I thought I might find here. I'd heard Monster Hunter World talked about a fair bit in terms of "You go and dynamically hunt big monsters in an open world", but my interpretation of what that means and the game's interpretation of what that means happened to diverge a fair bit. It's definitely my own wishful thinking, and that's on me, but I wanted to see if there was something I could grab onto beneath the surface that maybe prescribed to my wishful thinking enough to keep me interested.