It depends upon what you mean by slow. Typed Racket code compiles more slowly than normal Racket code, but should run about as fast or faster (for a small set

It depends upon what you mean by slow. Typed Racket code compiles more slowly than normal Racket code, but should run about as fast or faster (for a small set of specifically-typed code[0]). [0]: https://docs.racket-lang.org/ts-guide/optimization.html https://docs.racket-lang.org/ts-guide/optimization.html