guide-swiftui-performance-audit

Diagnose slow SwiftUI rendering and janky scrolling by auditing expensive view updates, layout thrash, and main-thread work. Map scrolling symptoms to likely causes like invalidation storms, then apply targeted refactors to reduce unnecessary body executions and view rebuilds.

Find the root cause of high CPU usage in SwiftUI by combining code-first review with Instruments profiling. Capture Time Profiler artifacts to identify main-thread work and validate bottlenecks using before-and-after metrics.

Profile SwiftUI hangs by collecting evidence with SwiftUI Timeline and Instruments. Capture artifacts for CPU, frames, memory, and hitches to triage unresponsiveness, mapping the recorded symptoms to specific view invalidation causes for structured remediation.

Your SwiftUI view updates frequently due to invalidation storms, identity churn, or layout thrash. An audit maps these excessive view update symptoms to their likely causes, providing targeted refactors to prevent unexpectedly broad view rebuilds.

Yes, you need Time Profiler artifacts to validate a SwiftUI performance audit. Collecting profiling evidence confirms the root cause of main-thread work and expensive view updates, enabling structured remediation with concrete before-and-after metrics.