Was this the case before you moved to Mavericks?
Do you have Adobe Drive installed on your machine? I was having a similiar issue and it was linked to an incompatability with Adobe Drive, I uninstalled drive and everything worked fine.
this could be the reason.
I'll try and let you know.
Adobe Drive is the reason!
Please communicate this to everybody massively because I think is the reason why many Adobe CC users refer about bad performance.
I heard many issues related to this and no one talk about this.