To be fair, this metric represents the absolute worse case scenario for latency in Julia. Even before 1.5 you could technically get a first plot in less than 7.8 seconds using SimplePlots.jl. This also doesn't speak to the performance once you have your first plot. I've crashed my computer a good number of times using Matlab or R to interactively manipulate a complicated 3D structure. I was able to add some crazy stuff to my plots before this happened in Julia.