I just asked SC support this question. I now separate by 30m to an hour.
This is a difficult question, as it’s based more on the individual than anything we’ve observed. Officially doesn’t matter how long you wait, it can be 10 seconds or 20 minutes. Realistically, this is going to require experimenting on your part. Waiting for a longer period between loops allows you to process some of the script’s input. Waiting less is just more convenient.
Just as you observed on the forum, we received the exact same kind of response for testers. It seems that the mental constitution of the individual matters more than any official “guideline” on this.
So, in deciding which direction to go, test them both. A longer period and a shorter period, and then observe your response. Running them back to back most certainly comes with a bit more recon, and waiting gives the system time to breathe before more input.
Our apologies that we couldn’t assist more. If you just want to “play it safe,” however, wait about 30 minutes after the first title before running the next.