I don't get the point with Java feeling slow because of the slow start time (compared to C++). If I understand correctly Passenger is a server application and t

I don't get the point with Java feeling slow because of the slow start time (compared to C++). If I understand correctly Passenger is a server application and this kind of application is typically started rarely and long running, so the start time is a non-issue in most cases. Another option could have been Swift, what is a more powerful language compared to Go.