Reduce the impact of loading – CDN gr-popups.js

Hi,
Long story short:
I have couple of popups which activate by inactivity and leave page.

Since that found out this issue on mobile from pagespeed:

My question is can I async those .js / disable / load from my server to avoid long connect.

I can async/defer any file but i don’t see them in your plugin list. Is it nested somewhere?

The page I need help with: [log in to see the link]