On my machine, macOS Big Sur is up to 18 percent faster than either Windows or Linux (Ubuntu, Linux Mint)

I ran Geekbench 5 on the same machine (Lenovo B50-80, i3-5005U, 12 GB DDR3, Intel HD 5500, 1 TB HDD, 5400 RPM).

Surprisingly, macOS is up to 18 percent (but a minimum of fifteen percent) faster than Windows 10 (preinstalled) or Ubuntu Budgie / Linux Mint (LTS versions) for multicore performance. It also offers 11% more battery life than Ubuntu (yeah Ubuntu is a power hog) but 16% less battery life than Windows (no complaints there).

macOS was instructed to give maximum battery life (PerfBias 0x15, set in CPUFriendFriend and ssdt-data.aml using CorpNewt's CPUFriendFriend on GitHub). Windows was on 'Better Performance' and both times the laptop was left unplugged. Internet was through the same Ethernet cable and stable (60 MBPS).

How is it that macOS on non-native hardware performs much better than Windows 10 on native hardware? Specifically, at what level are optimizations made to give a more smooth and performance-oriented experience running on non-native hardware and still beating Windows 10 soundly?

Benchmarks:

i3-5005U on Geekbench, Win10 has a benchmark of 445 and 1001 while my Hackintosh running Big Sur 11.4 has benchmarks of 526 and 1182.