Yes, because what matters to search engines is also what matters to your users.   Across all platforms—mobile, desktop, tablet—search engines want to see that users are sticking around on your website and that they like what you offer. If your website doesn’t load within 3 seconds on desktop, users are likely to leave. (And that number is getting smaller every year). As a bonus, sites that load within 1 second can actually convert 2.5x more than sites that load in 5 seconds.    So, speed matters. A lot. And if search engines see that your site loads fast and keeps users around, that’s when they’ll send you climbing up the ranks.