Implemented server-side load functions for item types. If your item type must load additional data not kept in the area or page collection in order to render itself, implement a load function. Load functions are asynchronous and they all run in parallel, however be aware that you are still blocking the display of the page, so you should not use a load function for anything you can't do quickly. Consider using a browser-side player function instead for anything that isn't important for SEO.