Xcode 15 build time much slower than previous Xcode version

Development Compiler
1

Not sure the Xcode team from Apple having performance test cases or not but seem Xcode 15 build time much slower than previous Xcode version 14.x
Can reference the results in the table on this project XcodeBenchmark#xcode-15

2

There is already another thread, see Xcode 15 beta 5 build performance is worse than Xcode 14.3.1