Yeah I notice that was weird too. The creator speaks a lot about about html optimizations but one of the most widely-used methods of page speed increases are global CDN distribution.
The SSD is really meaningless in this context. The website is so small that it will be loaded almost 100% from the filesystem cache. As long as it has more than 512 MB of ram...
If I wanted my website to load incredibly fast, I would absolutely not put it on an obscure VPS. Not that there's anything inherently wrong with it, but it's generally not going to make your site faster.