Site is Unusably Slow When Logged in
My site is very quick when not logged in (like 80/100 on Google page speed... most optimizations have been taken).
When logged in, a page can take between 30 and 45 seconds to load and this includes entering edit mode, exiting edit mode, pushing any button whatsoever.
I've cleared all old page versions and have messed with cache - these little things don't seem to help at all.
Have you turned on Opcache? What version of PHP are you using? I find PHP7 helps speed it up.
I am running PHP 5.6. Will updating cause any problems with add ons and whatnot?
Any way to turn that off?
How to change the marketplace and news settings in 5.7