Even without the head pieces, look at Aloy, it all just seems too floaty/over-exaggerated with lack of any sense of weight/resistance. Part of it is because they’re just standing there idly whilst their head is included in emoting, some of those camera angles don’t help it either.
Games like Skyrim keep their heads on check, and that’s just kinda dull but not as offensive as horizon. I feel metal gear solid, on ps1, has less wonky head gestures.
I wouldn’t put the blame much on the actors but on the animators and leads who said “that’ll do”.