Yoast/wordpress-seo — pull request #624 by KoenRijpstra (2014-01-30 08:40:56+00:00)
Title: Changed get_post_custom to get_post_meta for performance reasons

get_post_custom retrieves all the meta data and creates a lot of overhead depending on the number of meta keys available. I think that get_post_meta is better suited in this case and very beneficial for larger sites.

For further information, please see pods-framework/pods#2007