I've been using PDF documents with KOReader and it works OK.
I want to try reading KEPUB or EPUB books with KOReader but there is a problem with long rendering time when opening e-books (especially if it is a large one). Also, it takes some time to change settings e.g. font and font size. Is there any solution to the noted problems?
P.S. I am using the Kobo Aura One
Many thanks.
