So ...

We are going to use a handy plugin called WP Install Profiles.

Here it is:

https://wordpress.org/plugins/install-profiles/

Note: you'll see the usual warning message saying that the plugin hasn’t been tested with the latest major releases of Wordpress ... Ignore it ... I've tested the plugin on Wordpress 5.1 and works fine.

It's a quite small plugin (127 KB), but let's see the usual speed tests ...

Here are my results before installing the plugin ...

... and the result after installing and activating the plugin:

No more comments needed ...

So, let's see how it works ...