Hi, I have in the past used Deluge, Transmission, Ktorrent, and Vuze. Then I came to know about qbittorrent. My line speed is not that great. Its only 1 Mbps. My findings are that qbittorrent is the fastest in two ways. One, the app itself is quite light in comparison to Ktorrent and Vuze and second, after starting a download qbittorrent connects to the peers and seeders much faster than the other clents. Also as we all know in torrent downloads the speed gradually increases. I have seen that qbittorrent is the fastest in this area also. No torrent client can exceed the line speed but the question is which client utilizes the line speed the most.