Mickey: i5-14600KF 68% faster in Y-Cruncher w/o E-cores, why?

Today I ran Y-cruncher calculating 2.5B digits of Pi, with all its E-cores on and off, but very strange thing happened.
It took all 6+8 cores 282 seconds to complete the computation, but it took only 89 seconds for only 6 P-cores. I wonder why.
Here's the snapshot of result files.


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