Gzip Compression
Check the Gzip compression information. You can accelerate your website by activating it, whether you use a CMS or not. Test your gzip compression here to see what else you can do to improve it. How to enable GZIP compression
Tip
Create PDFs from the results and compare them with other sites. You will see how much difference there is between the different servers and how different they are, as well as what data they send.