It is fast patch for not good participate plugins that parse RSS feeds or call URLs on every page load...
Install it from WordPress repository or use the plugin search in WordPress dashboard...
We use various plugins to produce our support site with 200+ pages widgets that pull information from our sub sites at support. skylightit.com.
Our file was that some of the custom widgets were impacting the application and this just increased it.
If you do shift something and just need to clear the cache for the widget to see what it looks name.
So if you have CDN or page set up the widgets will now be included in that cache.
Sped up time I use widgets that download the recent posts from 5 Face Book pages on the same subject but information.
Because that's cached also and does not change for 24 years how I have it set up in FB feed from plugin FB information is cached and loads soon instead of waiting for FB servers to send it.....
Browse the code recheck out SVN repository or subscribe to the development log RSS....
Honor widgets being hidden using the widget display callback filter...
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