This code is a plugin to allow enable lazy loading on MetaSlider. It is worth reading the comments in the Gist for more details on how to use this code. Add this to wp-content/mu-plugins/metaslider-dynamic-loading.php and update the ID to include the slideshows you want to use.
We hope that this code will be useful, but do not make guarantees. If you need troubleshooting help, or modifications to this code, please contact MetaSlider Pro support.