Matlab (and Octave) has terrible performance in every benchmark comparison I've ever seen. For example see the Julia benchmarks: http://julialang.org/benchmarks/

Have you only seen one benchmark or did you choose such a biased source for trolling?

How I know this graph has nothing to do with machine learning? It has JavaScript listed and JavaScript is on the faster end of the chart.

Do you really expect anyone to believe that a single threaded JavaScript is going to outperform python or R with highly parallel machine learning algorithms?