rateLimitExceeded

When we are marking all orders as processed, google doesnt seem to like it because their api is flooded. Is there a way to setup a delay between each api call? or the amount of api calls per minute so we are not triggered?

The log to paste when you open a support issue:
{
  "error": {
    "code": 403,
    "message": "Quota exceeded for quota metric 'Queries' and limit 'Queries per minute per user' of service 'gmail.googleapis.com' for consumer 'project_number:xxxxxxxxxxx'.",
    "errors": [
      {
        "message": "Quota exceeded for quota metric 'Queries' and limit 'Queries per minute per user' of service 'gmail.googleapis.com' for consumer 'project_number:xxxxxxxxxxx'.",
        "domain": "usageLimits",
        "reason": "rateLimitExceeded"
      }
    ],
    "status": "PERMISSION_DENIED"
  }
}