Optimization for Google PageSpeed ​​- how to complete it?

Question

Google

There are 5 sites on Wordpress :
test1.miron1dl.beget.tech
test2.miron1dl.beget.tech
test3.miron1dl.beget.tech
test5.miron1dl.beget.tech
test6.miron1dl.beget.tech
PageSpeed ​​for both mobile and desktop. I've already tried everything, nothing works. In most cases, there is such an item: "Reduce the waiting time from the server." How can this be fixed?

Answer 1

1. Remove unused plugins. Why do you need Revolution and Layer plugins if neither one nor the other is used?
2. Refuse the premium template. For the sake of a menu for a mobile phone, you should not drag such a bunch of unnecessary code.
3. Cache pages.

Answer 2

1. Transfer the site to another (more productive) hosting.
2. Enable caching plugin (WP Super Cache, WP Fastest Cache etc.)
3. CDN

Answer 3

I wrote more about optimization here:
Why does Google swear at itself in Google PageSpeed ​​Insights about fonts?
You can get 100/100