When you purchase a game using Valve’s Steam distribution service, your client downloads the data files from Steam’s servers, unpacks them and installs the game. While this process is going on, however, you may notice your download rate fluctuating significantly, and even dropping to zero at times. There are a number of reasons why your Steam download rate may fluctuate, and in many cases, a quick fix can restore your file transfer speed. Writer Bio

Why Does My Steam Download Rate Fluctuate  - 79