For a bit of templating? Yes! What drives response times up is typically the database or some RPC, both of which are out of control of PHP, so I assume these were not factored in (because PHP can’t win anything there in a comparison).
If it’s stateless and nothing is kept in memory, can you have a connection pool?
If you run it in old-school CGI mode, no, because each request would spawn a new process. But that’s nowhere near state-of-the-art. So typically you would still have a long-running process somewhere that could manage a connection pool. No idea if it does, though. Can’t imagine that it wouldn’t, however, since PHP would be slaughtered in benchmarks if there was no way to keep connections (or pools) open across requests.
Anything under like 100ms load is instant to the user, especially a page load. It’s a balancing act of developer experience vs performance. To split hairs over milliseconds seems inconsequential to me. I mean, PHP requires $ before variables! That’s the real controversy :p