I never did the test by myself, I just watched now a couple of yt videos. It looks like the test duration is a couple of seconds. To be fast a couple of seconds is not the same as to be fast for a long time.
And there are other much faster single core cpus on geekbench.
Of course, todays cellphone cpus are "little wonders" but the are (of course) not the same as a desktop cpu.
iPhone XS: 4794 scores https://browser.geekbench.com/ios_devices/56
The newest Xeon E-2176M: 4900 scores https://browser.geekbench.com/processors/2500
the difference is only 2%...