Dawn theme scoring low performance results on Pagespeed Insights

I just switched to Dawn from Solo. There are some features I really like about the theme, but I ran some performance tests and I am getting <50 on Performance from Pagespeed Insights on Mobile. Desktops results for each category are roughly 95%. The other categories for mobile are 95% or more.

The biggest issues appear to be LCP. The focus there is my featured images in the featured post carousel. The images are from Unsplash and were added to the respective posts using the Unsplash tool in the editor.

Another issue is that the Unsplash images loaded from their website do not use next-gen image formats like web. They are jpegs, I believe.

I have verified that my server is performing well. CPU, memory, and IO are nominal. The longest contributing factor to page load time is the LCP and some javascript that is slowing things down...namely Stripe stuff.