Button & menu loading with another font for a half second

When loading my site, the button and menu load with another font for a half sec before switching to my actual font. Why is this happening? Any help would be appreciated. You can really see it immediately on mobile. Sometimes it happens on desktop but always on mobile. I’ve cleared my cached and it’s still happening.

Thank you!

Here is my site Read-Only: [LINK](Webflow - Entre Sueños)