React Native App Performance Polish

My cross-platform React Native app is already live on both the App Store and Google Play, but I’d like to give it a final layer of polish. I’m looking for someone who has shipped production apps before and can jump straight into an existing code-base.

Here’s what I need done:
• Trim startup and screen-to-screen loading times so the app feels instantly responsive.
• Tidy the UI on a few Android-only views for a cleaner, more consistent look.
• Optimise Firebase / Firestore interactions to make data reads and writes snappier and more reliable, even on shaky connections.
• Run a quick sanity test on both iOS and Android builds once the tweaks are in place.

Tooling is straightforward: React Native (current stable), Firebase, Firestore, Xcode, and Android Studio. I’ll give you Git access and store credentials after we lock the scope.

When you reply, please include:
1. A couple of links to apps you’ve launched on the App Store or Google Play that demonstrate similar work.
2. Your all-in fixed price and a rough timeline; this is a small, focused task, so I’m aiming for a quick turnaround.

If you’re comfortable squeezing extra speed out of React Native, tightening up UI, and fine-tuning Firebase sync, I’d love to hear from you.