Optimize App & Upgrade Authentication

The current version of my iOS and Android app is live but showing clear room for improvement. My top priority is tightening overall performance—faster load times, smoother screen transitions, and reduced battery drain—without disturbing the existing feature-set or design language... (Budget: ₹12500 - ₹37500 INR, Jobs: Android, Android App Development, App Development, iOS Development, iPad, iPhone, Mobile App Development, Mobile App Testing)