Only 42 out of 77 pages cached. No speed improvement

Hi all,
Sincere thanks for this free software.

However, only 42 out of 77 pages have cached, using the Preload function. I presume that’s how it’s done? I notice it’s cached lots of project posts but very few WP ‘Pages’.

My linked page is a very simple one, mostly text.

There’s also no noticeable speed improvement on the pages that are listed as cached.

Do I need to change a setting? Or clear the cache and Pre-load again?

Thanks ??
John

The page I need help with: [log in to see the link]