Google page speed insights (https://developers.google.com/speed/pagespeed/insights/) is flagging all of /cornerstone/assets/dist/js/site/cs.0ce70e6.js files for serving legacy JavaScript to modern browsers. In addition, that js library is about 150kb, its huge! I tried deferring it to boost loading speed but then the menu stops working.
Please advise as a theme update is required to eliminate the warning and do address its size and ability to defer. My website is irrelevant for this.