Updating utorrent tracker list
If you've ever downloaded a torrent, chances are you've cursed at the slow download speeds.That could be your ISP throttling the connection (thanks, Telenet), but it could also be that the trackers or peers you're using are just slow or unresponsive.
But, at the same time, you don’t want your upload rate to set it as maximum (‘0’ stands for unlimited) as it can choke down your own connection.
A seeder is one who has the complete copy of the file shared across the network which you intend to download.
However, a leecher is one who does not have the complete copy of file and has joined the network to download the file.
Setting upload rate to about 70-80% of your maximum upload speed would be a great option.
Whereas, you can keep the download rate 0, as it is considered as maximum.