Hi Amanda!
Thanks for getting in touch with us!
I’m sorry to hear you are having that issue. Let me help you with it.
Besides creating a new event, do you notice a slow down in performance in any other parts of your site? If you create a post or page, do you also experience the slow down?
I’ve just visited your site and it looks like you are dealing with a performance issue.
We have a great article that will get you started on Performance Considerations you should know about. After that, if you decide to implement a caching system then you can move to these articles: Caching: What, when and how and Caching month view HTML in transients
Finally, there is a good article George put up here that groups a set of developer plugins. It’s a bit more technical than the others but will definitely be of help if you are into development.
I would also suggest you get in touch with your hosting provider to see if they can give you some insight about this problem.
I hope that helps. Let me know how it goes.
Best,
Victor