I do wonder what world people come from when they praise the performance of Java. But the "cold start" is definitely my biggest issue, compared to the C#/.NET

I do wonder what world people come from when they praise the performance of Java. But the "cold start" is definitely my biggest issue, compared to the C#/.NET world where source can be clean compiled and the server accepting requests within seconds - I'm guessing Python may be similar (esp. with no compile phase).