Excessive Idle Time and Scripting Issues, Need Optimization Help

My website is showing a high idle time (over 4 seconds) and slow scripting. Can anyone recommend specific strategies to troubleshoot and reduce these bottlenecks?
CMS: Wordpress
Website Link: https://archaeoagency.com/
Perfomance Screenshot:

Network Tab:

You could try using Lighthouse in Google Chrome to analyze your site and it will give you suggestions on some remedies. Right-click on your site body and choose Inspect… and then click the >> , choose Lighthouse and click Analyze page load to get started.