I'm a little surprised by this. I can believe that Firefox is slower (I haven't done the comparison myself), but even so it's still capable of rendering hundred

I'm a little surprised by this. I can believe that Firefox is slower (I haven't done the comparison myself), but even so it's still capable of rendering hundreds of thousands of points or thousands of complicated geometric shapes. I would have thought it you had more data than that then the points will all be rammed together and hard to distinguish, so it would be better to switch to density plots.