Steam also extracts while it's downloading and will slow download speeds if there is a healthy buffer of things to extract. If you're downloading a game with th

Steam also extracts while it's downloading and will slow download speeds if there is a healthy buffer of things to extract. If you're downloading a game with thousands of small files to an HDD or even just a cheap SSD chances are you'll be throttled by your own computer's throughput rather than your Internet connection.