I know EaselJS library has capability to cache the bitmap representation of SVG, so if you do not change stroke settings, paths, etc. it works really fast. When

I know EaselJS library has capability to cache the bitmap representation of SVG, so if you do not change stroke settings, paths, etc. it works really fast. When you change, you need to update the cache manually. This works for HTML5 Canvas, but they also have DOMElement class which is still experimental so YMMV. Or maybe there is some other lib. that does specifically for DOM.