Hi there
This is more of a suggestion. But I've notice p2p detection mark doesn't seem to pick transmission torrent downloading/uploading which is for OSX.

Is there a chance it could be on the next version to detect this?

Thanks

If it's encrypted torrent traffic, you will have trouble. Same for uTorrent and Azureus/Vuze/Whatsthename

For encrypted it's much harder. You can limit the speed of all unknown types of traffic and leave only web/ftp/etc unlimited.