Heavendy Ariana Hairstyle bone fix?

Hello, recenetly I downloaded this particular ponytail hair by Heavendy called “Ariana” and for some reason the ponytail moves all of the place in game and it’s really a pet peeve because this is the only alpha ponytail I’ve downloaded that moves like this, I’ve tried changing it in blender by assigning it to different bones like spine 1 for example but it still looks the same... does anybody know how to fix it? It’d be easier for you to understand what I’m talking about if you download the hair for yourself and see first hand I’m not very good at describing things lol, thanks in advance for anyone who decides to help and yes I’ve read tutorials and have a decent understanding of blender