Thanks for the post, adding async to Astroid's JS libraries would be simple but it wouldn't work of all the other JS added by other extensions followed the same route.
We are working on combining, compressing and minifying JS & CSS into one file and have made good progress on it. There are still some JS bugs we are working but on hope we can release it soon. I'll post back here once there is an update and a version that can be used and ask you to run some tests on your website.
If you like our support and products, tweet us at joomdev and let the world know about it.
The administrator has disabled public write access.
JoomDev is not affiliated with or endorsed by Open Source Matters or the Joomla! Project. The Joomla! logo is used under a limited license granted by Open Source Matters the trademark holder in the United States and other countries.