I've been using Deluge for some time now (on Ubuntu Gutsy). Today I upgraded to v1.0.0, and when I launched it, I discovered to my surprise that all my old settings were gone!

The "new" Deluge kills my bandwidth (10mbit half duplex), and I can't seem to find a satisfying way to configure it. Any suggestions?
How many max connections are the optimum?
And what about the "per torrent" settings?
I tried many combinations, but can't seem to find a solution. Either it kills all my bandwidth or downloads are very slow...
Thanks