Hi,
Thanks for using our plugins. I can try to help out here.
I looked at the information you provided and all 3 of those functions although event related are actually custom functions in your theme that interact with the Events Calendar.
So I am not sure there is anything we can work on to improve in our plugins in this instance to help you out.
It looks to be coming from a custom widget they developed. Are you using that widget? Are you able to contact the theme developer to see if they can help?
Do you have front end caching to help prevent the page from loading those functions every time?
Let me know and I can try to help out from here.
Cheers