I assumed they were referring to Python which is after javascript arguably the most used language and also known to be one of the slowest. https://niklas-heer.

I assumed they were referring to Python which is after javascript arguably the most used language and also known to be one of the slowest. https://niklas-heer.github.io/speed-comparison/ https://niklas-heer.github.io/speed-comparison/ Honestly though, you could probably take your pick. Javascript is suprisingly fast for such a dynamic intepretted language, but PHP, Python and Ruby are all simultaneously some of the most used languages and the slowest.