App Launch Time Optimization Below 400ms on iOS
Most iOS launch slowness hides in framework loading before your code runs.
Rafael Ybarra
Staff Writer
Rafael Ybarra
Rafael built and maintained large React Native codebases at two venture-backed companies before the apps were acquired, giving him an unusually clear view of what cross-platform decisions look like at scale. He writes candidly about the tradeoffs developers rarely discuss in conference talks.
4 stories
Metal vs Core Animation for Custom UI Rendering
Know when Core Animation stops keeping up, backed by profiler data instead of instinct.
Rafael Ybarra
React Native New Architecture Performance Compared to SwiftUI
New Architecture closes the serialization gap that held React Native back.
Rafael Ybarra
Instruments Time Profiler for Swift Concurrency Bottlenecks
Profile a release build on real hardware to find Swift Concurrency slowdowns.
Rafael Ybarra