Hi Tyrone! If you have your own business email domain as your sending, there's a huge change that your emails will land on primary inbox. However, if it's received in promotions folder, I'm afraid ConvertKit has a control over that because it's based on the content of your email and the overall sending relationship Google sees between your emails and the subscribers.
The only way to improve this would be to fix the content so it doesn't sound promotional and get your reputation up by sending to your most engaged subscribers and in time this may improve to the point where it'll land in the primary inbox but otherwise ConvertKit can't control the placement. You can check this help guide for more information - https://help.convertkit.com/en/articles/3854922-gmail-promotions-tab2
Hope this helps! :)