A few things that they can do to optimize the store are :
1. Choosing closest server
If you targeting Amazon UK user then you might want to serve your UK customer using server that located in UK.
If you use Vultr server then you can use UK location.
If you use Digital Ocean then you can choose Amsterdam location.
2. Tweaking Server Setting
By default vps server configured by ServerPilot is more than enough for common task but they do provide a few ‘setting’ left for end user (vps owner).
You can check those aspects using gtmetrix page. For example hosting formula store I create yesterday. Gtmetrix score is here :
A few notes from Yslow grade :
Click the recommendation for “add expire headers” and I see :
That resource is not located in my server and that’s why I can not set the expire from server.
Fortunately all other setting already defined by FSB in .htaccess file.
So far the result is good according to Pagespeed 🙂