Well, it could be true IMHO. If I run my code that calls down to some ultra fast, mega well done C++ library that is much better than anything in the Go communi

Well, it could be true IMHO. If I run my code that calls down to some ultra fast, mega well done C++ library that is much better than anything in the Go community my code then completes requests faster than the Go alternative. If that is the case, that should influence the decision when it comes to performance. If performance is a very important deal in your app, you have to test this yourself so that you reach the performance you need. Perhaps you can write C++ extensions to Python for the perf-heavy parts yourself instead of having to write the entire application in a language that takes much longer time to develop in?