There seems to be something weird with using deluge and utorrent (not using at the same time).  When i install utorrent, initially i got good speed, then after 2 weeks or so, the speed was very bad. Then i uninstall it, then use deluge 0.5.9.3. After than got good speed with deluge. Then after 2/3 weeks (no real pattern here; sometimes, it is okay for a month and sometimes it will only ok for a few days) or so, same issues occur with deluge. speed going down. Then uninstall deluge, install back torrent. then got good speed. Weird....