Of course, an interpreted language implementation, versus a compiled language designed to port UNIX.
Even if counting that it is basically calling into C or C++ libraries, there is lots of boilerplate that the CPU has to consume, that just won't happen on the pure C implementation.
Even if counting that it is basically calling into C or C++ libraries, there is lots of boilerplate that the CPU has to consume, that just won't happen on the pure C implementation.