Removing unused Javascript

Hello! How do I remove unused javascript to increase ‘Time to Interactive’ on mobile? According to Google Pagespeed Insight, my mobile loading time is 9.7s. Also, how to eliminate render-blocking resources.

Not super familiar with custom code or how to change code.

Website: phasesensors.com
https://preview.webflow.com/preview/phase-sensors?utm_medium=preview_link&utm_source=designer&utm_content=phase-sensors&preview=b70c34d428a3af84ff4363d601bb5097&workflow=preview