swiftui-performance

Diagnose and fix SwiftUI rendering bottlenecks through code review, Instruments profiling, and targeted remediation. Audit SwiftUI view performance end-to-end, from instrumentation and baselining to root-cause analysis and concrete remediation steps. Collect: Focus on: Provide: Explain how to collect data with Instruments: Ask for: Prioritize likely SwiftUI culprits: Summarize findings with evidence from traces/logs. Apply targeted fixes: Look for these patterns during code review. Prefer cached formatters in a model or a dedicated helper: Prefer precompute or cache on change: Prefer precomputed, cached collections with stable identity. Update on input change, not in body . Avoid id: \.self for non-stable values; use a stable ID. Prefer one stable base view and localize conditions to sections/modifiers (for example inside toolbar , row content, overlay , or disabled ).