Javascript Slow Animation

Hello,
Im using a javascript file and everything works great in firebaseapp but when I uploaded the javascript file and use the html code in my page, the hover animation of the icons is very slow, in firebaseapp is instant, but in my page I can see the square box slowly coming from the right to fill out the icon.
In the pictures that animation should be instant and I shouldn’t even be able to see the box filling out the icon on the “Priest”