I've seen FoolReader before. Honestly, I'd like to help Anraiki but I can't because I'm not his team and I'm not as good at programming as him. I just answer questions that I think I know answers.
Anyway, I still say that FTP is faster than upload via HTTP, If there's no any problems with connection, firewall, web server speed, or proxy. If you really want to compare fairly. Make sure you use the same host (same server) uploading the same file and the same time (or near) and don't connect FTP via Web, It's not fast at all.
Something like "I uploaded this file to my server via FTP is slower than I uploaded it to my Mediafire account" doesn't make sense because Mediafire's server might be faster than yours. By the way, If you say that HTTP upload is faster. I got nothing to say more about this. Because this is not the point we should focus on.
However, Kommiku's going to have Rating and View Counter Systems. Just WAIT. About ZIP File images. This is the first time I've seen this script. This is great but as you say, Just leave the ZIP file with extracted images. We might not need this script.
The thing is, You just can't use Dumper right? Now, wait for Anraiki to help you. He doesn't have so much time. and I think most people can use Dumper without any problems. At least I can use without any problems. and yeah, if you don't wanna wait. Just try any readers else! like FoolReader. But if that doesn't fit you purpose you just have to wait or buy some Manga Viewer script.
Ah, Make sure that you haven't seen Kommiku's FAQs. And as Anraiki says at first, Try CHMOD "comic" directory to 777.