I would like to send 10 emails with 30 minutes interval between each.
But my subscription is “core” and it says “40min scenario execution time”.
So I guess that if I have a scenario that sends 1 email each 30 minutes, ten times, I will not be able to fully run it.
You cannot use an interval higher than 5 minutes between modules, as the Sleep module has a maximum of 300 seconds.
The easiest thing to do is schedule the outgoing mails intermittently by iterating the mails and using a formula in the Send Email module such as:
addMinutes( now ; ({bundle order position} - 1) * 30)
You cannot copy this formula, it is just an example of the logic. The first mail of the 10 will be sent immediately and the other 9 are spaced out evenly.