Don't off books at two different prices...Offer different genres in their own sections.
Stop giving books on unlimited for free and keeping the high regular price for regular customers who want to read the books and keep them. That should be flattering to the author. Instead, they get a slap in the face and have to buy the same book for $7.99 or more,sometimes. It's insulting and and they lose customers because of that. I unsubscribed from many that worked that way.