Async JavaScript

I installed Async JavaScript last week and have just discovered that it freezes Thrive Architect when I go to edit some page content. I deactivate it and the problem stops. Unsure of what settings to look out for to stop it happening. I have tried excluding editor.min.js, excluding Thrive Architect in plugins and Thrive Theme Builder in Themes but none of this works. Also tried changing from Async to Defer did not work either.