How to reduce the large bundle size of @react-email/render?

[laubonghaudoi]

I am using next js for my app and the core web vital shows that I have a large amount of unused javascript. So I run the bundle analyzer and see that it's actually the @react-email/render package taking up the most spaces:

This thing is the largest chunk in my static bundle. My First Load JS shared by all is 174 kB, while this beautify.js alone is 144.95 kB. I am already using dynamic import for this email rendering component and split the codes. This is greatly slowing down my web app, increasing the Largest Contentful Paint (LCP) and I want to know how to fix this piece of "unused JavaScript".