This technology is one of the few that comes along over the years that is SO USEFUL and POWERFUL and so UNKNOWN that it is unbelievable.
If you download files of any kind, you need to know about TORRENT or SWARM technology.
When you download a file you normally get one piece at a time from a single source.
When you download a file using swarm, you get a piece from everyone on the internet that is using the swarm to download the same file. Sometimes you get literally 100's of sources for the same data, and the improvement (in my experience) is UNBELIEVABLE. Files that used to take 8 hours or more are now in my hands in 1.5 hours.
Do a google search on "bittorrent" and read up, then download the torrent client and ENJOY.