Prioritize the Core Action

Perceived speed is about feedback. Show the main content first, acknowledge taps immediately, and keep the next useful action available.

Start With the Largest Delays

• Measure on a real phone and an ordinary connection
• Compress images and load the right size
• Defer scripts that do not support the first action
• Cache stable data close to the user

A few targeted changes often improve the experience more than a broad rewrite.

Measure Before and After

Use the same page, device, and action for each test. Fix the largest delay first, then measure again.

Make Performance Routine

Performance is ongoing product work. Include it in release reviews so the app stays responsive as features are added.