Need the ability to filter Employee API by date created/modifed

I'm working on an integration which syncs data in Personio with data in AirTable.
This should happen every 15 minutes.

Owing to limitations in both APIs, the current solution is requesting ALL the data from both sources, comparing the records, and then updating AirTable accordingly.

This is not very efficient as most of the data in Personio is not changing and the amount of data is constantly growing on both sides.

A more efficient way to do this would be to request from Personio which Employees are new or have had updates since some particular time, and then use this information to update AirTable. The ideal solution might even allow us to request just the change history.