for me, 1.8 is not throttled which is a massive advantage

Hi,everybody. I really frustrated with my utorrent. Currently I used bitcomet and still good. After I found jiwang.cc and download the torrent file using bitcomet it "did not connect at all even after a few hours" then I install utorrent and the things work but nowadays I find out there are few problem come out at logger options it says behind firewall and downloaded speeds "0". I've done portforwarding (router),changed TCP/IP to 50. My questions :

1.Why bitcomet cannot connect at all to certain torrent site ex: jiwang.cc
2. Why my utorrent act like that

For info I run both torrent client at the same time.

Pls advise me.