Lighthouse metrics improvement

Dear all!
I need your help to figure out how can I improve my website regarding Lighthouse measurements.
As you can see in the screenshot, performace and PWA scores are low.

I’m not a technical person, would you please help me to understand how can I “reduce unused Javascript” to improve the website performance?


Here is my site Read-Only: Webflow -

Start cleaning up both interactions and style, you have 38 unused interactions and 1400 unused classes, and also share the live link