Instant Page (instant.page) is a pretty cool tool, that make your site’s pages instant and improve your conversion rate.
Amazon and others found that removing 100 milliseconds of latency improves sales by 1%
The idea is that there is a significant delay between hovering over a link and clicking that link. Say it takes you 300ms of delay. That 300ms could have been spent preloading the next page. And if you do use that time preloading, that page loads that much faster.
Setup Instant Page for SEO
Click Instant Page in the left navigation. Then select Active