Fling to change Page in zoomed PDF

Hello,

I have integrated the library successfully, but I've seen a strange behaviour. When I use the PDFViewDual and I have zoomed somewhere in the page, if I fling to change page the page is changed but not by two. e.g I'm viewing the page 3 of the document, if I fling quickly the document goes to page 21 and not to the page 5.
Anyone have an idea for where to look to fix this behaviour?
Sorry for my bad english.
Thanks

We couldn't reproduce the issue using the demo project..can you?

Are you using the latest version?
Does this happen with certain documents?