How do I add Rel=preload in generatepress?

Hello Team,

I ran a speed test for my site on Google's Lighthouse speed test page.

While on desktop it looks good, for mobile the score is messy.

It shows the icon is taking a lot of time to load, here's the link: https://theportablelaundry.com/wp-content/plugins/gp-premium/general/icons/gp-premium.ttf

I want to put this URL "https://theportablelaundry.com/wp-content/plugins/gp-premium/general/icons/gp-premium.ttf" as prefecth (<link rel=preload>`).

pls help.

Regards,
Hemant S