[WPMU DEV Dashboard] Page speed questions

Hello,
When I do a page speed test using googles page speed insights: https://developers.google.com/speed/pagespeed/insights/
it shows that I have render-blocking JavaScript and CSS in above-the-fold content.
Most of these are coming from wpmu.
Example: javascript:
https://hb.wpmucdn.com/…/55d58c88-ea22-47a4-bee9-152aa7391a1f.js
https://hb.wpmucdn.com/…/36c33984-b91c-47ce-b898-3cd62729e4b2.js
https://hb.wpmucdn.com/…/3555f089-6e2d-42b4-b175-145799f05645.js
https://hb.wpmucdn.com/…/bcff4213-3bc3-4b0e-9c87-07e46658dbb9.js
CSS:
https://hb.wpmucdn.com/…f5c7d651-4e99-4835-beb2-caf806c444ec.css
https://hb.wpmucdn.com/…1790fe6c-091c-488a-9c55-b7ba2e3bddc3.css
https://hb.wpmucdn.com/…c180b24f-4fe6-4913-b04b-e538dbe374ee.css

I am wondering what I can do to remedy this and improve my page speed?

Thanks