If you don’t mind quick and dirty, partials (Link) have an option to add server side data as well, so you can just wrap your current sc data (client side) in to partials and add to the pages. Never tried and not 100% sure if ihis solution has any disadvantage, but can’t see any reason why wouldn’t it work. In a long term you should consider putting everything in one api per page for the content, editing/copy/paste server actions outside of Wappler may help a lot, also cache what you can. 
Gabor