Torrenting doesn’t rely on how fast the central server is. Instead, it splits a large file into more manageable components, specifically smaller bits, for transmission to and from multiple computers. The larger the number of peers available for file transfer, the faster torrenting gets.
Torrenting doesn’t depend on a centralized server for storing files. Instead, bits of data from individual large files are saved in participating computers (peers) in a network (swarm) to facilitate the file-sharing process.