guide-swiftui-performance-audit

Diagnose janky scrolling by auditing view invalidation, identity churn, and heavy work in body to identify bottlenecks, then apply targeted fixes like reducing update fan-out or stabilizing list identities.

Profile excessive view updates and layout thrash by setting up Instruments to capture SwiftUI timelines, identifying long updates and hitches, and comparing traces against instrumented baselines to support root-cause analysis.

You can start with a code-first diagnosis of high CPU and memory usage, but guided profiling using Instruments and Time Profiler data is recommended when code review is insufficient to pinpoint the root cause.

Reduce update fan-out and stabilize list identities by following remediation guidance that provides actionable steps to downsample images, optimize view invalidation, and prevent unnecessary view updates from propagating.

You need to provide relevant SwiftUI code samples showing performance symptoms, traces or Time Profiler data, and instrumented baselines to receive a root-cause analysis, remediation steps, and performance metrics.