I use Hugo published to Github Pages for my blog. I've never thought about performance (it's Fast Enough™ when I visit it), but I just checked and it's 100 on pagespeed. The magic of a static HTML blog is you don't have to think about performance. An entire category of problem just disappears.
Same we moved from Wordpress to Hugo when looking to update our company site page. Using AI to update the legacy Wordpress theme just wasn’t it. Had updated brand and style guide, Claude made short work of porting to Hugo and Google speed rankings were excellent even without cdn etc
Hugo is great. I had Claude make the framework for my wifes site using Hugo, Netlify free tier, and Decap CMS. And I forced Claude to avoid any Javascript for the non CMS parts.
I use Hugo as well. If any of your pages have larger media, look into Pipes to get images ladder srcsets built for you automatically. Very fancy. https://gohugo.io/hugo-pipes/introduction/