Comment to 'Loading speed of site'
    1. Until the site is full of active users you CPU and RAM shouldn't be a significant factor.
    2. DB optimisations may be important, but also at higher scale/activity levels. Sometimes we see issues like inadequate memory allocation, and sometimes the may be a case for using a different compatible DB.
    3. Number of Active blocks makes a big difference, naturally, while number of inactive blocks shouldn't matter. It is still good to clean them up, because it's just easier to manipulate the page in the builder.
    4. Third-party modules and 3rd party plugins/libraries may play a huge difference, because we simply don't have enough test data to optimise for that. Often just using some old JS for a minor UI tweak, or some poorly optimised tracking library can add lots of time to your page response, and some may well be blocking.
    5. Try loading your page with a browser console open and watch timeline and network results - there may be some "gems" there that will help you identify the culprits. For example, here on UNA.IO the homepage with feed, menus, messenger and discussions loads in just over 4s+ including all media.