Why do the digital Hutts always look so off?

One thing CGI has never been able to reproduce is a Hutt that matches the Jabba the Hutt practical from Return of the Jedi. The skin texture, the shape, the movement, the overall weight, just is never right. The Mando Grogu trailer just reinforced this to me and I've been thinking about it all day. Kind of makes me wish they'd just make more large puppets.