It looks like the first query run in the REPL takes more time (startup cost). Subsequent runs of that query return around 5ms. Even a query like `SELECT * FROM 1` when executed immediately after starting the REPL will take longer than usual. Even running non-query expression, e.g., `1 + 1` immediately after starting the REPL will take more time to complete than usual.

The time reported by the REPL can be misleading.

There is work that we definitely need to do on performance as we develop PartiQL. Performance is something we have been considering since inception and we will keep considering as we go forward.