So ...

We are going to use a handy plugin Tako Movable Comments.

Here it is:

https://wordpress.org/plugins/tako-movable-comments/

Note: on the plugin page you'll see the "traditional" warning message saying that the plugin hasn’t been tested with the latest three major releases of Wordpress, but you can ignore it ... It's just an old plugin which hasn't been updated long time ago, because it works fine as it is ...

So ...

It's a really small plugin (46 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 ...