The item update for a list only needs few information. a direct request to the process uri would give you all the narratives. Put the summary=true into the url so you only get basic information for the process and don't need to get all narratives. Example:
https://n3phele-dev.appspot.com/resources/process/2522082 get all narratives
https://n3phele-dev.appspot.com/resources/process/2522082?summary=true only a summary of the process