Hello, usually when I download any torrent my download speed is very unstable. When I add a new torrent it starts downloading it at high speed (over 5mb/s) then after a few minutes drops down to 0.2kb/s then after few seconds it starts going up again until it reaches high speed, and stays there for a few minutes.. Atm I'm downloading a torrent and same thing happens, it goes from 0.2kb/s to 11mb/s then goes back to 4.5mb/s then goes back to 0.2kb/s etc. It doesn't matter if its Wifi or cable. The problem is not in my internet provider. Also I was using default bittorent preferences, then I found some different videos/articles but they didn't help, so I set everything to default again. What should I try?