During the journey of installing WordPress, choosing a theme, setting up plugins, and so on, I ran into a problem that oh-so-many out there have hit: terrible performance in the WordPress admin (downloadable version of WordPress, not at wordpress.com)
Well, to make a long story short this time: Do as everyone recommends, despite believing that the problem occurred before a certain point, or isn’t related…just do it: Disable all plugins which should get your performance back to something more acceptable. Once you are that point, enable your plugins one at a time until you hit your performance snag. I won’t list the problematic one for me, as yours will probably be different.
Just do it. You’ll be glad you did, even if for the fact that then you can be certain that it isn’t your plugins.
Just do it.