Just chiming in to join chorus of folks reporting CC 2014 performance issues on Mavericks.
As a side note:
I initially uninstalled CC in the process of troubleshooting the issue, but ultimately decided I needed to get it back since it worked well, at least. I cannot believe how difficult it was to figure out how to reinstall it. "Filters & Versions" was impossible to spot. I searched and searched for a way to get the previous version, both on the site and within the Creative Cloud app. It was maddening. Perhaps even more maddening than the original 2014 performance issue.
Sigh.