And if your wp site is fairly large be prepared to go take a nap while it runs. I just installed this plugin on a larger site and it's still churning 30 minutes in.

On the flip side, we run a custom cms with hugo as the SSG on a much larger site and it builds and deploys in under a minute.

WP has it's uses, but speedy sites are not a focus.

WP2Static is another option.

https://wp2static.com/