Experiencing huge lags with authorising access tokens/accessing management API

Our production login process is currently breaking intermittently without any code change on our side. This has been occurring since September 1st and only seems to impact one tenant. Login occurs successfully and then during the callback on on our app future calls to Auth0 to authorise access tokens or get user info from the management API are taking well over 2 minutes to complete. This causes our web server to time out, but I have recreated locally. It doesn’t occur every time and future logins can be timely and therefore successful. There’s been on change to configuration on our side.

I have no means of getting further information from the existing logs, are there backend logs that could be made available to diagnose this? Or could some kind of rate limiting or other mechanism have been applied to our tenant?