you have to leave it running until the torrent is finished downloading,, thats the only way to get the maximum speed and connect to seeds faster after the torrent is finished you can cut it off. but make sure its turned on and running before you start each torrent,, or it wont do its job, if you start the torrent first then run the bt engine,, it will run but it wont have any effect,, it has to be running before the torrent is started up until its completed