Preload font awesome

Hi, I’m using customify theme. There’s a problem with it when checking my page at PageSpeed Insights (Google’s tool).

It shows, that by preloading file fontawesome-webfont.woff2, my page would load 4.35s faster! It’s a hell of a time, so I started searching for a solution.

On PageSpeed Insights there’s information: “Consider using <link rel=preload> to prioritize fetching resources that are currently requested later in page load.”

So here’s my question – is that a bug on my page only (doubt that) or is there a solution that can prevent that slow loading?

Thanks in advance,
Kacper

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