Hello,
The star rating enables automatically when you have some reviews for that product. In case, if you want to show the star rating even if there are no reviews, please navigate to Theme Settings -> Product archive -> Products styles -> Show empty star rating.
https://monosnap.com/file/Htr9ZpFOvHCKqqjdml8UofPzd5UBol
As for the number of comments, unfortunately, there is no option in Theme Settings available to achieve that. It requires Customization and this is beyond our limitations and support policy scope. Hope you can understand our limitations.
Kind Regards