the book Infinite Journey is terribly slow when opening and highlighting

Hi,

I've started to read the book The Infinite Journey by Andrew Davis on my Nexus 7 in the Vyrso app. For some reason this book is terribly slow to open up and when I add a highlight it takes almost a minute to process.

I've tried to read the book in the Bible app to see if there would be a difference, but it seems to have the same behavior with the book. I've never had this with other books yet, are there other people who have the same problem with this book?

I've tried emptying the cache of the app to see if that would work. I've also removed the book and downloaded it into the app again. Nothing helps. Any idea to help?

Thanks, Daniel