Depends on what you're doing. If it's fronting an expensive web-app, then the couple hundred CPU-microseconds needed to proxy a request isn't going to be notice

Depends on what you're doing. If it's fronting an expensive web-app, then the couple hundred CPU-microseconds needed to proxy a request isn't going to be noticeable... Caddy can serve 5,000 requests per second per core. I would flip your statement on its head, and say that a minority of people need anything close to that. The few companies that do, can probably afford to keep on top of CVEs for their frontends as well.