I don't have anywhere near the same number of items in my iBooks app (only a few PDFs actually). Once a book is open, it's ok, but it just took 40s to open the

I don't have anywhere near the same number of items in my iBooks app (only a few PDFs actually). Once a book is open, it's ok, but it just took 40s to open the app. That actually seems a little quicker than it has been, so maybe Amazon has done some work on the app.