I would say it looks better than Berserk, where Berserk was just super lazy. They are going with a visual style in HnK that makes it pop out, but still looks pretty stiff in certain areas. I don't think the visual style is to blame, but really the idea of limiting the frames to match that of 2D animation, which I guess is because they show scenes that are done traditionally to match everything. A lot of video games will make the graphics of characters look like anime drawings, but can have very fluid motions that make them feel like they're almost real, and I'm referring to something like Uma Musume. Going for a more realistic design, it's amazing what video games were able to produce from over a decade ago like in pic related. There are CGI animation companies hired by publishers to do the cinematic cutscenes and renders that aren't ingame, and they look pretty amazing. I feel like if you're going to go for a CGI series, then fully go for it instead of tying to make it look like something it's not.