That is funny. If that is their proposed solution, I have a better one: quit the application. Why keep it running if it will not index and sync files? For now I'm trying to use older versions, looking for a more stable one. But I think it's time for another round of searches for BtSync alternatives.
I'm having trouble with BtSync indexing frequently consuming more than 70% of CPU after upgrading to 2.3.3 (296). I'm running on Mac OS X 10.11.3. Can I provide more information to help you track this issue? Is this already on your radar? Or it's a better idea to downgrade until a proper fix?