Trouble with CPU power management on XPS 15 9570

Hey! I just got my XPS 15 9570 working perfectly in macOS Success' href='/2020/12/install-macos-mojave-on-supported-pc.html'>Mojave, and used ssdtPRGen to make a custom SSDT.aml for the i5 8300H CPU. The power management always works for a while staying at 1200-1500MHz on idle (why not 800, the lowest that should be possible by the way?), anywhere from 2 minutes to hours after I first boot the machine, but then randomly the CPU starts running at full turbo despite there being no load. There doesn't seem to be a way of resetting this other than to reboot the machine, which always temporarily fixes it.

For the record, I'm using LuLetterSoul's latest EFI with no modifications. The PC is a 1080P variant XPS 15 9570 with a core i5 8300H, 8GB ram, a kingston m.2 SSD, and a (disabled) GTX 1050.

I'd appreciate any help I can get as I'm quite a newbie! :)

Author: @Freddich99