Docusign Connect Event Notification time

Hello Community!

I’ve been searching through the official Docusign documentation to find the expected latency for Connect webhooks, but I haven't had any luck.

Does anyone know the typical delivery time for the Envelope Completed event from Docusign Connect after all documents are signed? I'm looking for the expected times in both the Demo and Production environments.

I need to provide official documentation or a formal reference to a client, so any links or official quotes would be greatly appreciated.

Thanks!