The Rabaul Nurses Camps page interested us because it was created using Microsoft Word 12. When we checked it with an HTML validator, the page had 121 HTML/CSS warnings and errors, and it didn't render well on small screen, mobile devices. Loading the page moved about 620 KB over the network in about 0.6 seconds.
Here's the Lighthouse score for that page:
We recoded the page in HTML5 and CSS3. Here's our version of the page. It has no errors or warnings. Loading the page moves about 387 KB over the network in about 0.37 seconds. It looks much nicer on mobile devices.
Note that we converted the images to .webp format but did not provide for older browsers to load .jpg equivalents. This is easily done, of course.
Here's the Lighthouse score: