Twitter Auto Poster Template

Hi,
I’ve used the template to create an auto poster. I filled out my google sheet with 100 lines of references and connected my OpenAI API all correctly. When I run the scenario, it posted 13 posts each from different subject, about 20 seconds after one and other. This then causes a rate limit issue with Twitter. I want to schedule 1 post, every 8 hours from my list of 100. I cannot figure out how to change these parameters!
Thanks in advance.
Kyle