axiom-swiftui-performance

Diagnose SwiftUI performance issues using Instruments 26's SwiftUI template.

Updated Dec 3, 2025
One-click install
npx skills add https://github.com/tuliopc23/flying-dutchman-app --skill axiom-swiftui-performance-tuliopc23
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: axiom-swiftui-performance
Source: https://github.com/tuliopc23/flying-dutchman-app/tree/main/.claude/skills/axiom-swiftui-performance
Command: npx skills add https://github.com/tuliopc23/flying-dutchman-app --skill axiom-swiftui-performance-tuliopc23

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps developers diagnose and fix performance issues in SwiftUI applications, such as slow scrolling, janky animations, and unresponsive UI.

Core Features & Use Cases

  • Identify Bottlenecks: Uses Instruments 26's SwiftUI template to pinpoint slow view bodies and unnecessary updates.
  • Analyze Data Flow: Visualizes how state changes impact UI performance using the Cause & Effect Graph.
  • Optimize Lists & Scrolling: Provides strategies for improving performance in complex lists and nested scroll views.
  • Use Case: Your app's scrolling is laggy. This Skill guides you through using Instruments to find the specific views causing the slowdown and suggests optimizations like caching formatters or breaking down complex view hierarchies.

Quick Start

Use the axiom-swiftui-performance skill to analyze a trace from Instruments to find slow view bodies.

Frequently Asked Questions about axiom-swiftui-performance

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I debug slow scrolling and janky animations in SwiftUI?

Analyze data flow in SwiftUI using the Cause & Effect Graph in Instruments to visualize how state changes impact UI performance and identify unnecessary view updates.

How do I optimize complex List and scrolling performance in SwiftUI?

Optimize complex List and scrolling performance in SwiftUI by applying targeted strategies like caching formatters and breaking down complex view hierarchies to resolve slow view bodies.

Why does my SwiftUI app have unresponsive UI and unnecessary view updates?

Unresponsive UI in SwiftUI often stems from unnecessary view updates and expensive view body computations, which you can diagnose using the SwiftUI template in Instruments.

Can I use Instruments to find slow view bodies in a SwiftUI app?

Yes, you can use Instruments 26 and its dedicated SwiftUI template to analyze your app trace, identify slow view bodies, and diagnose data flow issues impacting performance.

What is the best way to trace SwiftUI performance bottlenecks?

The best way to trace SwiftUI performance bottlenecks is using Instruments 26 to capture an app trace, then analyze the Cause & Effect Graph to isolate slow view bodies.