Quick Checklist: Before You Profile

These are simple checks and fixes you can apply before diving into profiling tools. Most performance problems come down to a few common mistakes.

✅ Use a Release Build

• Confirm you’re running a Release build (not Debug) on the device
• Enable AOT and linker trimming

✅ Avoid UI Thread Blocking

• Don’t use .Result, .Wait(), or .GetAwaiter().GetResult() on Tasks
• Use async Task instead of async void (except event handlers)

✅ Simplify Layouts

• Replace deep or redundant nested layouts
• Use Grid instead of stacked StackLayouts when possible
• Use CollectionView instead of long ScrollView

✅ Dispose Resources and Unsubscribe Events

• Use using blocks for IDisposable resources
• Unsubscribe from events in OnDisappearing or Dispose()

✅ Optimize Images

• Use right-sized image assets (avoid huge images for small views)
• Use SVG or vector images where applicable
• Enable caching for UriImageSource

✅ Defer Startup Work

• Don’t load data or services synchronously in CreateMauiApp()
• Lazy-load large resources or dictionaries

If the problem persists after this, continue to a deep-dive guide.

➡️ Next: Validate Async/Await and UI Responsiveness