So ...

This time I am going to use a plugin called Quick And Easy FAQs.

Here it is:

https://wordpress.org/plugins/quick-and-easy-faqs/

It's a medium-size (480 KB) plugin, so 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 I guess ...

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