So you see all the pictures but can you see one after the other or after one is seen you have to choose the next manually (that is reader return to the file browers and you file to select the file manually)?
How is the image quality? It is better or worse of a cbz converted in epub/pdf/etc format by for example Calibre?
Maybe can be worse Calibre cut the borders, do the color conversion (probably in better quality) and adapt the image on the screen size, now is done by the reader on the fly