Download slow from April 2014

hello I’m french I’m "senior colonel 'I use bittorrent for at least 8 years I have become very slow download then that he currently seeder and many leechers

(45 kbs) instead of 500 (kbps) I have not changed or options or anything changed?? Have you any idea?

http://www.cometforums.com/topic/12793221-please-read-this-before-posting/