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I have two mac pro.The A Mac Pro: Model Name: Mac Pro Model Identifier: MacPro6,1 Processor Name: 6-Core Intel Xeon E5 Processor Speed: 3.5 GHz number of Processors: 1 Total Number of Cores: 6 L2 Cache (per Core): 256 KB L3 Cache: 12 MB Memory: 16 GB Boot ROM Version: MP61.0116.B46 SMC Version(system): 2.20f18macOS Sierra 10.12.6The B Mac Pro: Model Name: Mac Pro Model Identifier: MacPro6,1 Processor Name: 6-Core Intel Xeon E5 Processor Speed: 3.5 GHz number of Processors: 1 Total Number of Core: 6 L2 Cache (per Core): 256 KB L3 Cache: 12 MB Memory: 32 GB Boot ROM Version: MP61.0120.B00 SMC Version(system): 2.20f18macOS High Sierra 10.13.2for the same project, A needs 7 minutes, B actually takes 15 minutes.Configuration is higher, why is it slow? anyone can help me?