1. Adaptive checking instead of fixed 3-second intervals
2. CSS-based hover instead of JavaScript event listeners
3. Combined selectors for better performance
4. Smarter resource usage that scales with activity

Bug fixes:
1. Fixed Potential Memory Leaks
Improved cleanup of timeouts using clearAllTimeouts()
Better handling of observer disconnection

1. Improved YouTube Compatibility
   Better handling of YouTube's autohide states
   More specific CSS rules to avoid conflicts