cFosSpeed - The Internet Accelerator
cFosSpeed increases your throughput and reduces your Ping.
Keep your internet fast during heavy upload/download
Improve your Ping for online games
Reduce audio/video streaming problems
I bought this software almost 9 years ago and it was one of my best purchase ever. The price has gone up during these years but it seems like it has gone back to the original price I paid 9 years ago because of the world cup fever. I can't really explain how it works but if you look up "traffic shaping", you will kind of get some idea. The reason why I purchased this software was because of this:
http://www.cfos.de/en/cfosspeed/documentation/p2p.htm
Basically if you are a person like me who does gaming while torrenting, you will need this little piece of software to help the data packet flow so that it doesn't lag your gaming. It prioritizes your internet downstream + upstream so that your connection can run concurrently without interfering with your primary usage. If you have this software installed on all the computers in your household, it is smart enough to talk to one another so that no one computer will hog the entire home broadband.
Apart from torrenting + gaming, it also helps your web browsing + torrenting. Just bear in mind, this software won't speed up your already slow broadband.
I'm using the version of this that came free with my Asrock motherboard. Seems to do the job, such as slowing down steam updates when I'm watching YouTube etc.