Reproduction steps:
1. Open project
2. Switch to iOS
3. In Player settings, select IL2CPP (Edit > Project Settings > Player)
4. In Build settings, select Development Build (File > Build Settings)
5. Build and Run
6. Compare IslandManager__ctor and other constructors to Unity Editor 2021.3

Expected result: Performance is similar
Actual result: 2021.3 has a better performance

Reproducible with: 2022.3.45f1 (user reported)

Testing environment: macOS 14.5 23F79 Darwin 23.5.0 (user reported)
Not reproducible on: No other environment tested

Notes:
- CQA did not test this issue