Hello mate,
It can be a lot of things. Several users have asked similar things in the past and it usually hard to give a straight answer without having more details.
This could have to do with factors like distance from the leechers and you, the leechers max download speed, any router or firewall you use. It also Depends on how many seeders vs leechers on the current torrent. If you're the only seeder, then you should get higher upload speeds. If a lot of seeders and few leechers on the torrent, then the opposite occurs. Looks like you just started, so give it a bit of time. If you are able to UL a torrent, this will give you the best indication of your UL speeds. (Took last part from
https://foru.mma-torrents.com/viewtopic.php?f=2&t=6496 )