More people do like that, more seeders of the file available. Then, the file he downloaded becomes another seeder available online. That is to say, a user downloads a file on his computer via torrent and he allows others to access the file on the machine. The reason for downloading through torrent is comparatively faster than common download (directly from data center) is that every former downloader can be a seeder if they permit. Speed up uTorrent by Downloading from Reliable Source with More Seeders
Speed up uTorrent by Downloading One by One Yet, the methods mentioned below also apply to other versions of uTorrent like 3.4.5, 3.4.7, 3.4.9, 3.4.3, and 3.4.2 as well as other Windows OSes some of them are appliable for macOS & Linux.
Especially, it is based on uTorrent 3.5.5 and Windows 10 Pro (64-bit) operating system. This article offered by MiniTool company focuses on speeding up the torrenting speed of uTorrent.