I migrated from the old LR to the new CC. When I did, I noticed the response time for edits is painfully slow. Move a slider, wait 3-10 seconds for the photo to refresh. Right click on a radial filter/brush/grad filter and hit 'duplicate', wait 3-10 seconds for the photo to refresh. It happens if I have 3 filters, or 30 (OK, 30 is an exaggeration, but the point it the number of filters isn't really the issue).
My computer is the same. And I did not have this problem in the older version of LR.
At first it was just a minor annoyance, but now it's significantly disturbing my workflow and my patience...and it's making me NUTS.
Has anybody seen this problem before? More importantly, what did you DO about it? I tried contacting Adobe, but no luck.