React Native 0.63.3 is extremely slow

[Anujmoglix]

My updated App is very slow . It was working smooth in 0.59.9 but now it's performance is getting worse .
I am trying to downgrade it but getting lots of issues . What to do now? Is React Native Team working on that issue because lots of people are already facing that and there is no proper solution available here.

[github-actions]

⚠️	Missing Environment Information
ℹ️	Your issue may be missing information about your development environment. You can obtain the missing information by running react-native info in a console.

[Anujmoglix]

OS: macOS Mojave 10.14.6
CPU: (8) x64 Intel(R) Core(TM) i5-8257U CPU @ 1.40GHz
Memory: 321.04 MB / 8.00 GB
Shell: 3.2.57 - /bin/bash
Binaries:
Node: 14.4.0 - /usr/local/bin/node
Yarn: 1.22.4 - /usr/local/bin/yarn
npm: 6.14.4 - /usr/local/bin/npm
Watchman: 4.9.0 - /usr/local/bin/watchman
Managers:
CocoaPods: 1.8.4 - /usr/local/bin/pod
SDKs:
iOS SDK:
Platforms: iOS 13.2, DriverKit 19.0, macOS 10.15, tvOS 13.2, watchOS 6.1
Android SDK:
API Levels: 23, 24, 25, 26, 27, 28, 29
Build Tools: 26.0.3, 28.0.3, 29.0.0, 29.0.2
Android NDK: Not Found
IDEs:
Android Studio: 3.5 AI-191.8026.42.35.6010548
Xcode: 11.3/11C29 - /usr/bin/xcodebuild
Languages:
Java: 1.8.0_231 - /usr/bin/javac
Python: 2.7.16 - /usr/bin/python
npmPackages:
@react-native-community/cli: Not Found
react: 16.13.1 => 16.13.1
react-native: 0.63.3 => 0.63.3
react-native-macos: Not Found
npmGlobalPackages:
react-native: Not Found

[github-actions]

⚠️	Missing Required Fields
ℹ️	It looks like your issue may be missing some necessary information. GitHub provides an example template whenever a new issue is created. Could you go back and make sure to fill out the template? You may edit this issue, or close it and open a new one.

[github-actions]

⚠️	Missing Reproducible Example
ℹ️	It looks like your issue is missing a reproducible example. Please provide a Snack or a repository that demonstrates the issue you are reporting in a minimal, complete, and reproducible manner.

[Anujmoglix]

What type of information you want ? I can share performance monitoring video of my app with comparison of 0.63.3 to 0.59.9