Bulk update CMS Items through API

Hi All,
II would like to update 300 CMS items in a list, but I keep on hitting the API limit. I do not want to slow down the transfer rate rather update the whole list is one request - much like an API version of the CSV upload instead of updating each item one by one through the API update.

Do you know of any way that I could achieve this?

Kind regards,

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

If you upload all that info into Airtable there are tools by community members to help automate that. Checkout PowerImporter.