mobile-performance-tuning

Profile mobile apps and apply targeted fixes to reduce cold start, scroll jank, memory, and CPU usage.

6|Updated Apr 24, 2026

Search Tags:#performance #mobile #memory #profiling #startup #battery #jank

Ready to run

npx skills add https://github.com/lookatitude/guild --skill mobile-performance-tuning

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: mobile-performance-tuning
Source: https://github.com/lookatitude/guild/tree/main/skills/specialists/mobile-performance-tuning
Command: npx skills add https://github.com/lookatitude/guild --skill mobile-performance-tuning

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Profiling and optimizing mobile apps to reduce cold-start time, scroll jank, memory usage, and battery drain, delivering measurable before/after improvements.

Core Features & Use Cases

Instrumentation plan: select the right profiler, device, and scenario; capture a baseline.
Targeted fixes: lazy-init heavy work, off-main-thread tasks, and memory cleanups with before/after validation.
Use Case: a user experiences a 20% faster startup and smoother scrolling after applying the plan on a mid-range device.

Quick Start

Run the mobile performance tuning plan on a representative device to produce an instrument plan, baseline, and post-fix metrics.

Frequently Asked Questions about mobile-performance-tuning

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

FAQPage Schema

How do I profile mobile app startup and identify cold start bottlenecks?▼

Profile mobile app startup by selecting a representative device and capturing an instrumented baseline. This identifies cold start bottlenecks and produces a prioritized fix list with impact estimates to deliver faster startup times.

What's the best way to fix scroll jank and reduce memory peaks on mid-range mobile devices?▼

Fix scroll jank and reduce memory peaks by applying targeted fixes like lazy-initializing heavy work and offloading tasks off the main thread. Verify improvements using post-fix metrics captured on representative hardware.

How can I optimize mobile app battery drain and steady-state CPU usage?▼

Optimize mobile app battery drain and steady-state CPU usage by instrumenting real-device scenarios to capture a baseline. Apply memory cleanups and off-main-thread tasks, then validate battery life improvements with post-fix metrics.

What is included in a mobile app performance tuning plan?▼

A mobile app performance tuning plan includes an instrumentation strategy, an instrumented baseline, a prioritized fix list with impact estimates, and post-fix metrics to verify improvements across cold start, scroll jank, memory, and CPU.

Do I need to test mobile performance optimizations on real devices instead of emulators?▼

Yes, you need to test mobile performance optimizations on real devices. The plan applies to real-device scenarios across representative hardware to accurately capture cold start, scroll jank, memory peaks, and steady-state CPU metrics.

Why does my mobile app still experience scroll jank after moving tasks off the main thread?▼

Scroll jank may persist if memory peaks are unmanaged or heavy work is not lazy-initialized. Capture an instrumented baseline, apply targeted memory cleanups, and verify using post-fix metrics to ensure smoother scrolling.