Having your website live on a fast and secure server means your website visitors spend les s time waiting for the website to load and more time browsing.
Google recognises this and will penalise you if your website is slow, meaning fewer visitors and therefore fewer customers.
All the websites I create and manage live in a fast, reliable, premium UK based host.
This means fast response and excellent service.
And of course, all website are secured with SSL encryption (the green padlock on your browser).