
Originally Posted by
copper
You didn't give us much information to go on e.g. utorrent setting: bandwith, upload slots, speedtest, what trackers are we talking about, etc so I can only generalize. I don't see why there should be a large difference between clients if they are configured the same.
You should check for obvious things, such as confirming that your client is connectable and not hidden behind a firewall. But at a guess you either have a slow upload path to the net or perhaps the torrents or tracker in question is well served by seedboxes. Torrent clients will favour the faster swarm connections. So if there are a number of seedboxes or even people with substantially faster uploads than yours, then you will have problems seeding because most clients will connect to other seeders with faster connections.