If you check the API console, what is your rough average on drive.files.get in a 24 hour period:
- Less than 50,000
- 100,000 - 200,000
- 200,000 - 300,000
- 300,000 - 400,000
- Greater than 400,000
Have you ever received the infamous Error 403: The download quota for this file has been exceeded., downloadQuotaExceeded error?
If you did receive the error, can you check and post your drive.files.get for that day and share what that number is. You can use the mouse and roughly select the 24 hour period by dragging across it and see what the number is.