Charts slow to load even with no data/transitions

I'm working on a page that will have approximately 1~20 charts at a time. However using c3 I noticed my load times on that page go up to nearly 2-2.5 seconds. I created a fiddle to test my chart in an isolated environment, and found that it takes anywhere from 500 - 2000 ms to render about 20 charts with no data, even without transitions.

Is there anything I can do to get this time down? I feel like it shouldn't be nearly this high especially with no data being rendered.

Fiddle below:
[JSFiddle](http://jsfiddle.net/mbf1m32s/5/)