Unfortunately it's a lot of smaller charts and they're embedded in an SVG based diagram interface as foreignObjects, which doesn't support a WebGL context (in Chrome at least). I'd love to play with WebGL, but not usable for this task.

Writing the whole interface in a WebGL canvas could be really fun, but far too much work for an MVP, and would kind of mess with making it work on iPad etc.

At this rate, you'd get an awful lot of people who can't see your chart if you did it in WebGL!