I think it's more apt to say that Python isn't fast, but it has FFI that can be used to interface with things that are fast. The same is true of JS though, and

I think it's more apt to say that Python isn't fast, but it has FFI that can be used to interface with things that are fast. The same is true of JS though, and most interpreted languages that have an escape hatch for FFI. The difficulty of getting it to work may vary.