Mobile App Performance Optimisation: A Mumbai Developer's Guide

Mobile Performance in the Indian Market

Indian mobile users are uniquely sensitive to app size and performance. Budget Android devices with limited storage and RAM dominate the market, making optimisation a competitive requirement rather than a nice-to-have.

Key Optimisation Areas

APK/IPA Size

• ›Reduce below 50MB: Indian users often download apps on mobile data. Every MB above 50MB increases abandonment by 8%.
• ›Android App Bundles: Play Store serves only the resources needed for the user's device configuration
• ›Remove unused resources: Audit Drawable resources, remove unused fonts and libraries

Launch Time

• ›Defer non-critical SDK initialisation: Analytics, crash reporting, and marketing SDKs can launch after the first frame
• ›Splash-to-content under 2 seconds: Use a splash screen with cached content, render the first screen from local storage while network data loads
• ›Bundle splitting: For React Native, use Hermes with bundle splitting to load screens on-demand

Network Optimisation

• ›Image compression: Serve WebP/AVIF on modern devices, fall back to JPEG on older ones
• ›GraphQL over REST: Fewer requests, smaller payloads, exact data needs
• ›Offline-first: Cache API responses with Service Workers or Room database

Related: Push notifications strategy, Cross-platform app guide.