Zoom Meeting Performance Optimization

I'm facing persistent issues while hosting 10-18 person meetings on Zoom via my laptop. Despite having sufficient bandwidth, I'm experiencing screen freezes and occasional drops from Zoom. I've conducted all possible troubleshooting measures—updating my internet provider and Zoom, reinstalling the software, and switching browsers. I need a tech-savvy professional to diagnose and fix this issue swiftly to resume my bi-weekly classes.

Ideal skills and experience:
- Extensive knowledge in troubleshooting Zoom-related issues
- Experience with optimizing laptop performance for video conferencing
- Strong understanding of internet bandwidth and its impact on video calls.