Improving app performance usually comes down to identifying bottlenecks and fixing them systematically. Some common approaches are:

• Optimize resources: Compress images, minify scripts, and remove unused assets.

• Reduce network overhead: Cache data where possible, batch API calls, and use efficient data formats (like JSON instead of XML).

• Efficient code: Avoid unnecessary loops, memory leaks, and expensive operations on the main thread.

• Lazy loading: Load only what’s needed on startup and fetch the rest as required.

• Monitor performance: Use profiling tools to measure CPU, memory, and network usage across different devices.

In practice, the right fix depends on what your app is struggling with—UI rendering, API response time, or device-specific issues. Start with profiling, then apply optimizations where they’ll have the biggest impact.