Re: Why Do Torrents Do This?
The torrent file is broken down into 'chunks'.
Some of the chunks will have more seeders than others, the chunks with the most seeders will elicit the highest download speeds. So when you're downloading a poorly seeded chunk, your download speed will probably be lower.
The less seeders there are, the more likely your download speed will deviate as it's doing now.
The way your client decides which chunk to download goes some way to explaining why some clients are faster than others.