If the check box for Utorrent is "on", did you turn it on?
In my experience, it is always off by default, due to the fact of the Avast! P2P shield being unable to scan Utorrent's downloads without unreasonable resource usage.
So if it is checked on, sure, uncheck it and then try Utorrent again to see if it is better. The P2P shield will not scan Utorrents downloads that way of course, but other Avast! components are still protecting you.