As a Highcharts developer, I had a look at your benchmarking, and have some thoughts about optimizing for Highcharts. The first step is to turn off animation, which helps a lot. The default Highcharts animation on addPoint is 250ms, so with a refresh rate of 100ms you will get a lot of redrawing going on for nothing. The second thing that possibly optimizes a bit is to use hard-coded axis values so that it doesn't have to recompute axis values for each iteration.

With those modifications the performance is much better: http://jsfiddle.net/highcharts/1o5ghqc8/