Text reflow slow and buggy
Text reflow crashes easily when fast scrolling a few pages with this ebook:
http://forksofthewabash.org/wp-content/uploads/CHIEF-FRANCIS-LAFONTAINE-2.pdf
It also takes quiet a bit of time to load the next page. When accidentally pressed the lower part of the screen it takes more then 5 seconds reloading the page while switching to or out of full screen mode.