Manual

37
Maximum
number of active
downloads
The maximum number of active torrents that can be downloaded at
the same time. If you add more download items, some items have to
wait in turn.
Maximum
concurrent
connection
number per
torrent
The maximum number of connections can be used to download a BT
download item at the same time.
DHT network
Enable DHT network would let the BT have a chance to find more
peers to download even when no tracker servers are available.