Even the images you see are not exactly in theme with what I do but I like street art and so I put these.
On the other hand, however, this CMS (WordPress Content Management System) is a missile, really very fast (click here to view a lighthouse test) and at the bottom, in the footer, each page shows its own metric in real time of the latency. If you reload the page the value will change.
I use this CMS basically to test functions, vm servers, instance configurations and other strange things so I don’t care too much about the design.
Now I write only two more lines to explain in general what is behind a work on web performance.
More or less it is like an orchestra, everything must be perfect and it is hard work to get excellent results.
It’s like turning a subcompact car into a racing car and obviously a lot of work and time is needed. The programming code is almost all written by hand without using plugins. The use of a possible plugin is subject to several rigid factors: accessibility test, speed test performance, best practices, possibility to modify the back end and front end code and customization.
To understand what the WPO (Web Performance Optimization) consists of, it is necessary to understand what are all the aspects that influence it, which are specifically: hardware (virtual/real), cloud servers location map, network bandwidth, application complexity, memory consuption, response time of databases and service providers, user/client load.
A web consultant takes care of all these aspects in addition to organic indexing.
What I do ?
I deal with web consulting for small and medium-sized companies. I help companies on the choice of hardware / software infrastructure which, more and more, orient towards the IaaS (Infrastructure as a Service) or PaaS (Platform as a Service) as: Google Cloud Platform or Amazon Web Services and also about the choice of the Content Management System (CMS), about building and optimization of web content according to what are the optimal loading standards indicated by google (less than 3 seconds under fast 3G network) as well as the organic indexing on search engines.