Optimize Loading Speed in React Native App

I'm experiencing slow performance issues in my React Native app using Expo. These loading issues primarily occur when navigating between screens, specifically the Home, Profile, and Settings screens. The app does not crash or freeze, but the sluggishness is significantly affecting the user experience.

Ideal skills and experience for the job include:
- Expertise in React Native and Expo
- Proficiency in optimizing app performance
- Experience with debugging and troubleshooting navigation issues in mobile apps
- Ability to enhance user experience through speed improvements.