I noticed this also. Running latest version on osx yosemite Whenever I have the Finder app in focus, it would be extremely sluggish. (and this is a fast mac w plenty of ram too). I narrowed down the issue hopefully...See if anyone else can duplicate this: When I am signed OUT of Adobe creative cloud in the adobe application manager, core sync spikes the CPU to 30-40% (or more) when I bring the finder into focus, and it's very sluggish to do anything with Finder. When I am signed IN, then there are no lag issues at all. It's like Core Sync will just keep attempting to run even though it's failing to do its job because you're not signed in.
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