Why are you assuming a dynamic site is slow? Everything after the first request is cached by a CDN anyway so the only difference is when that original page is

Why are you assuming a dynamic site is slow? Everything after the first request is cached by a CDN anyway so the only difference is when that original page is generated. It only takes a few milliseconds to generate the page from a database vs reading a file from disk. The bigger advantage to static sites is portability (even though you can have a webapp that reads markdown files just as easily as database rows).