Scrolling is horrible, they failed on the simplest task

As I write this I am studying for a test using an E-textbook. Scrolling is a nightmare on my core i5 mac. Between pages, sometimes it does not go up a page and sometimes it does. This is so frustrating and it is literally all they had to do and they failed. I wish I could view this textbook in a Pdf editor but no, i’m stuck with this application. I absolutely will not be using this garbage again. Amazon, I know of at least two engineers who work for you and they’re very smart. Get your s*** together, please

HoraleGuey about Kindle Classic, v1.12.4