Lazy loading button styles from Redconnect?

Question

Client side optimization

Hello everyone, there is a site that is well optimized, gives out 89+ points on Google Speed ​​insight.
The client uses a free button from the Redconnect service, when this button is connected to the site - the site works just as fast, but the Google points drop to a modest 48. The problem is that this button pulls 3 files each weighing 73kb.

Please advise the correct solution to this problem.
The solution "Remove the button and forget it like a bad dream" or "Forget about google speed statistics and enjoy life" - do not fit)
The site itself is on WP. Caching is done using the WP Cache plugin, all other shamanism was done through functions.php