@luisfmm:

Hey guys, not the most savvy when it comes to torrents, but I know my way around.

I've read the guide and know that there's a recommendation to use uTorrent, which is precisely the client I've always used.
However, I've noticed that my upload rate is really low for torrents from this particular website/tracker (tw), even if they're recent and popular.

Is this a recurring theme?

When I download from other websites or trackers the upload rate is usually pretty good so I know my internet isn't the issue. Am I doing anything wrong?

Recent and popular videos that have a lot of peers could naturally result in low upload speeds because of the nature of torrenting.  If torrents from other sites don't exhibit the same problem, then it is most likely just bad luck.

If a torrent is not recent and popular, for instance if you're the only seeder, then upload speed would also depend on the downloader's download speed.  I frequently see rates of 0.7 KB/s.  Might not be their actual maximum download speed but maybe there is some other bottleneck such as their ISP limiting certain kinds of traffic.