WP Instant Links

Works out of the box. After activating, this plugin will pre-fetch the next web page just before your user clicks, thus giving the experience of an instant page load.

Better UX. Perfect for slower and shared web hosting plans.

This plugin is a wrapper for instant.page with some additional options and designed to be ready-to-go out of the box. No configuration needed.

More from https://instant.page/ –

instant.page uses just-in-time preloading — it preloads a page right before a user clicks on it.

Before a user clicks on a link, they hover their mouse over that link. When a user has hovered for 65 ms there is one chance out of two that they will click on that link, so instant.page starts preloading at this moment, leaving on average over 300 ms for the page to preload.

Easy on your server and your user’s data plan

Pages are preloaded only when there’s a good chance that a user is going to visit them, and it preloads only the HTML of that page, being respectful of your users’ and servers’ bandwidth and CPU. It’s 1 kB and loads after everything else. And it’s free and open source (MIT license).

Some Technical Info: https://instant.page/tech