Delay Javascript execution

Hi,

As you probably are familiar with, the shortcode with the pdf already opened (without the type=thumb) is very heavy and makes the page load slow. If i delay javascript execution with wp-rocket, i got exelent scores, but the pdf not working, keep loading and say “loading 3D webgl”. But i have the option to insert files that i want to be excluded, so what js file i can exclude from being delayed so this keep working?

regards