Are these Torrent files or regular Gnutella network files?
In LW 5.5.8 there are separate settings you can use for torrent up and downloads. Unlike proper torrent programs, you cannot set how many connections however (how many people are connected to you per file which is probably costing a lot of bandwidth in messages between each. Not only that but tends to clog some modems/routers especially if they are wireless. For example, with Azureus/Vuse you can set how many connections per file.)