Caddy didn't break when Let's Encrypt disabled the TLS-SNI challenge. Many other ACME clients (even Certbot) did. Also, having a fully-integrated solution will

Caddy didn't break when Let's Encrypt disabled the TLS-SNI challenge. Many other ACME clients (even Certbot) did. Also, having a fully-integrated solution will be more reliable and lower-maintenance, especially in the long run. And Caddy's faster than you think -- "significantly reduced performance" is an overgeneralization. Caddy may happily serve tens of thousands of requests per second. (It all depends on, well, a lot of things.)