Delay between user creation and initialization code email.

Hi, we have a zitadel cloud pro account, we are seeing delays, sometimes of more than an hour, from the time an user is created and the email with the initialization code is sent.

We don't allow user registration, in our setup users are created by "admins" that sometimes upload a csv with the users data, then we use the ImportHumanUser function from the managment grpc client (see link) to create each user.
Our users are not having a great experience because we send our "welcome email" as soon as the user is created but if zitadel doesn't send the initialization code then the new users are not able to login.
We need our "welcome email" because it has information on how to use our application, we are not able to modify the "initialization code email" to achieve the same design or information through the zitadel console.
I think the ideal solution would be to have an endpoint or grpc client function that can generate an user (without password, or email verified) returning an initialization code that way we could just add the code as part of our "welcome email" but looks like there is no endpoint like that at the moment.

is this delay a known bug?
could there be another solution with the existing zitadel capabilities to our problem that we might be missing?
https://github.com/zitadel/zitadel-go/blob/aad6fea5e41f95579aa0e7c033b0952500ce3d4a/pkg/client/zitadel/management/management_grpc.pb.go#L331
Best,
Jorge