[Mobile] Android Implementation Shows Significantly Slower Performance

[moven0831]

Problem

Mobile benchmarks for commit d57c6d3 running on the adapted mobile interface repo (zkID Mobile Wallet-Unit-PoC v1.0.0) reveal that the Flutter app runs 2-4x slower on Android compared to iOS.

• See Doc: Update Mobile Benchmarks (d57c6d3) #39 for additional context on mobile benchmarks.

Details

The performance degradation is suspected to be caused by UniFFI compatibility requirements that disable certain Android build optimizations:

• Resource optimization - Disabled to ensure FFI compatibility
• ProGuard/R8 code shrinking - Must be turned off per Mopro Flutter Setup Documentation

This pattern is consistent with other mobile proving backends as well like:

• Circom benchmarks
• Noir benchmarks

We need to find optimization approaches that work with UniFFI to make computation-heavy mobile apps more viable and deliver better UX.

Acceptance Criteria

• Research and document Android optimization strategies that maintain UniFFI compatibility
• Implement app-level optimizations compatible with FFI (e.g., in zkID Mobile Wallet-Unit-PoC v1.0.0)
• Implement infrastructure-level optimizations compatible with FFI (e.g., in Mopro)
• Document implemented approaches and their performance impact