Optimize performance for production workloads. ## Requirements - Memory usage optimization - CPU usage profiling and optimization - Network efficiency improvements - Large dataset handling - Resource cleanup and leak prevention ## Acceptance Criteria - [ ] Memory usage <50MB for 10 printers - [ ] CPU usage <5% during normal operation - [ ] Handles 50+ printers efficiently - [ ] No memory leaks during long runs - [ ] Graceful handling of network issues - [ ] Performance benchmarks documented