When you click "download," you expect a file to arrive quickly, not for your entire digital world to grind to a halt. Yet, "downloading kills internet" is a common frustration where a single large transfer—like a 100GB game update or a 4K movie—effectively chokes every other device on the network.
This phenomenon happens because modern downloaders are designed to be "greedy," attempting to use every bit of available bandwidth to finish as fast as possible. Why Downloads "Kill" Your Connection download kills internet