Got a problem, using the shortcodes for tabs and toggles and the actions are not smooth, its like delayed/not smooth dropping down while displaying it when you click on them, also the same "delay" happens when scrolling down the page, its not smooth. Don't know what can be causing this.
The tabs are not lining up too, when you click on the second tab the content drops a few lines, same for the other tabs.
Also on the theme preview for the demo on the advanced shortcodes page, the secondary title is using a different font (on your demo site), is there a option for that?
Here is the site with a couple of examples with the issues above: