I agree. I write 70% of it and then Claude helps me refine it by enhancing vocab, structure and grammar. Ideally I would like to just use it fix grammar but atleast this way I am writing more and my drafts just don’t sit in notes.

The 30% you're outsourcing are where the growth happens. If you don't have any idea how to improve beyond a vague feeling that AI outputs look "better", I recommend checking out the book "What Is Good Writing?" by the linguist Geoffrey J. Huck. It should give you a clear understanding of your impressions and a clear direction.