Webnodes CMS is based on its own ORM with its own support for CMS features such as versions, languages, etc.
It is very fast and has an intelligent and automatic cache.
It is also superior in handling relations between objects, so you can basically model any type of data using a solution, so you can use it for any type of web application, and not just for publishing pages.
Read more on the Webnodes website.
Disclosure: I work for Webnodes.
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