[coffeedrinker]

I've been using btsync for a long time. I have seen high cpu or net utilization, but it was because of a changed name on one of the computers that were syncing. The other instance was still trying to connect to the device using the old name. The solution is to delete the synced folder and reestablish it under the new name. It does not need to recopy the data, but it does need to reindex.