Audit and improve SwiftUI runtime performance from code review and architecture. Use for requests to diagnose slow rendering, janky scrolling, high CPU/memory usage, excessive view updates, or layout thrash in SwiftUI apps, and to provide guidance for user-run Instruments profiling when code review alone is insufficient.

通过代码审查和架构分析审计并优化 SwiftUI 运行时性能。用于诊断 SwiftUI 应用中出现的渲染缓慢、滚动卡顿、高 CPU 或内存占用、过多视图更新或布局抖动等问题，并在代码审查不足以定位问题时，为用户提供使用 Instruments 性能分析的指导。