I’ve added the Font Awesome (Enabler) stack to a page (Source), but PageSpeed Insights tells me to set font-display to swap for the FontAwesome font (for an estimated saving of 1160 ms),
but I don’t understand how to do it/set it…
I need Font Awesome for the text of some buttons, for example:
<i class="fa fa-phone-square" aria-hidden="true"></i> Chiama ora