Quick question..I switched my ISP yesterday and I immediately noticed that my torrent downloads are considerably faster now.
Is it possible torrent downloads were limited by my previous ISP?
Absolutely. You have not advised where you are, but it is common practice in many parts of the world to "prioritise" traffic. Generally that means putting P2P traffic in a limited pool.
Decent ISP's publish this information, but a few hide it of-course, and then spin stories... and who is going to call them on it, as most users don't only download "Linux ISO's".
Also, P2P is quite expensive from an ISP's point of view, both in terms of resources used and in number of connections to be tracked on the routers.