It is taking many MINUTES to do a post update or new post when the disk: enhanced page cache is full (also using database cache disk and MaxCDN).
The page caching gives the site much faster load time. I'd prefer to keep it. But administering is unwieldy with the delays and sometimes the editor goes back to the list of posts after sitting for a LONG time. If I use the Performance control panel to clear the cache it still takes a LONG time but then updates can be faster.
I have the page purge policy set to only home/post/feed.
Any ideas where to look/tweak to deal with this issue? I am on a VPS. Approx 800 posts on the site. http://www.thrivingnow.com.