Web Vitals and CLS caused by JWP

Google Search report that Web Vitals CLS is high in our website.
After an investigation it is because the player is generated on the fly and from zero space used there is a layout shift of like 300px~ as hiehgt.
We fixed it with CSS on the .jwplayer class as it is already available in the html and defining as default a minimum height to fix it (a blank space with a placeholder img).