Replacing Wordpress Elementor plugin

Hello,
I'm looking for ways to make my site faster and I noticed Elementor builder is very heavy on my database and site size. I would like to try another builder but don't want to loose the designs I've already made.
Is there any way to replace elementor to another builder like oxygen or divi without loosing the designs? maybe a sort of plugin that could be converting the data to something the new builder would understand? WordPress ...