Trying to use AE and PP templates on Mac

I am trying to use some of these video templates for AE and PP on my Mac and its beyond slow. I have 32gb ram. When I upload an mp3 and mp4 it renders and exports fine but with the templates…no good.

Have you used similar templates on a different machine without any issues? It could just be the nature of templates themselves, as while a one minute video (for example) just made up of a few video clips strung together might render in less than a minute… depending on the specs of your machine and the complexity of the project, a complex template might take several hours. I think my longest render was 48 hours for a ten second clip.