[flowless]

It doesn't feel slow to me (compared to for example C++ compilation) and you can iterate quickly using cabal repl (:r) or ghcid[1] which both support partial recompilation of changed files.

[1] https://github.com/ndmitchell/ghcid

[gridlockd]

Comparing to C++ is a very low bar, that is why I was looking for comparisons with dynamic languages.

What is the turnaround time with these interpreters, then?