We’ve created the fastest related posts ever

When we say “related posts for WordPress“, we say “bad performance”. Without using an external service like ElasticSearch, it’s practically impossible to have related posts work fast in WordPress. That’s why we’ve always stayed away from including any related posts plugin on our site. It’s also the reason we haven’t tried to come up with a solution ourselves before. In the upcoming release of Yoast SEO Premium, this will change. We found a way to have blazing fast related posts! Let me explain how we did that. Our solution has a frontend and an admin component. Let me start by asking a very simple question:
On a content page, what would be the fastest implementation of related posts you could think of?
The (somewhat dull) answer:
Simple, old-fashioned links.
You simply don’t need to generate related posts, if you already link to your related content in your text. Not only is this better for frontend performance, it also benefits SEO. It’s simply better to link directly to your related content in a meaningful context, than to use a generic related posts box somewhere else on your page.
Of course this is easier said than
Source: https://managewp.org/articles/13954/we-ve-created-the-fastest-related-posts-ever

source https://williechiu40.wordpress.com/2016/12/05/weve-created-the-fastest-related-posts-ever/