Moving from Wordpress to Eleventy
An SSG Makes the Most Sense for This Site
Wordpress is a fine platform, but it's overkill for this site. I don't need a database, custom fields, or unnecessary plugins; just some barebones code and content. Static suits me just fine.
It's Great for Performance
I mostly attribute the performance bump to the static nature of the site. There are no roundtrip database calls, unneeded scripts (AHEM, jQuery), and I feel that I have more control over image optimization because I'm the one coding them. I'm also not limited by PHP, which is why next-gen image formats like WebP can't be uploaded to Wordpress without a plugin.
Developing with Eleventy is FUN
Strangely, I was a little overwhelmed by the simplicity of Eleventy. All of the build tools that I'm accustomed to getting in newer frameworks like Gatsby or Next aren't built-in, which means I need to set it up. I realized quickly that it is the beauty of Eleventy. No more webpack or bloat that I don't need. For the moment I've reverted back to vanilla CSS in an effort to reduce layers of complexity until I figure out a smarter and simpler tooling setup.
The site is far from finished, and I have a number of minor-ish things that I need to get done before I'll feel satisfied with it. Namely, an XML sitemap, RSS feed, favicon and app icons, and better use of the Image plugin. But it's up, and that's a good enough start for me.