If you’re a blogger, you’ve no doubt heard that you want your readers to be ‘engaged’ with your blog. What does that actually mean? Well basically it means you want to keep people on your site longer, you want them to explore your site, find more posts they are interested in and read more than the one post they perhaps initially landed on. ‘Related posts’ plugins can help with this because in various ways, shapes and forms, they create lists of related content at the bottom of any given blog post, to provide the reader relevant recommendations and an easy next click that keeps them on your site.
The problem with some related posts plugins is that they create these recommendations automatically ,on the fly, every time someone is viewing a blog post. In layman’s terms this just means that your database and server are doing way more work than they have to, and this inefficiency can slow down your site.