Slow network is detected. Fallback font will be used while loading

Hi all

Slow network is detected. Fallback font will be used while loading: https://fonts.gstatic.com/s/opensans/v15/k3k702ZOKiLJc3WVjuplzBampu5_7CjHW5spxoeN3Vs.woff2
Slow network is detected. Fallback font will be used while loading: https://fonts.gstatic.com/s/raleway/v12/rr0ijB5_2nAJsAoZ6vECXYX0hVgzZQUfRDuZrPvH3D8.woff2
Slow network is detected. Fallback font will be used while loading: https://fonts.gstatic.com/s/lato/v14/9TBVFLzQ3GUZLG8FZ4yrEXYhjbSpvc47ee6xR_80Hnw.woff2
Slow network is detected. Fallback font will be used while loading: https://d3b1ak9ylguumf.cloudfront.net/app/static/vendors/external/font-awesome-4.5.0/fonts/fontawesome-webfont.woff2?v=4.5.0

What is the best way to solve those problems?

I actually now deactivated Hummingbird to have at least a loading site!

Kind regards