That's surprising. Is it the example here (http://code.shutterstock.com/rickshaw/examples/extensions.ht...) that is slow? How is it slow (when you click on controls to customize the view, drag a slider, mouse over plots)? When it's slow for you is there something else on your computer chewing up a bunch of CPU?

A lot of the hard work is being done by d3, which is pretty well optimized for the tasks its doing. I'd be surprised, even on a 4-5 year old commodity desktop, to see laggy or jumpy behavior with fewer than a million or so plot points.