My DPC went down like crazy low after disabling Microsoft ACPI-Compliant Control Method Battery on 1903.
laptop specific? I dont see this in device manager.. Anyway, I was also missing that "PowerThrottle" value in regedit, so I made one and also disabled it in gpedit.
I disabled that power throttle and it gave me 3-7fps less in destiny2.. on nessus by one ship I use to get 60-64fps now it dropped to mid 55ish fps. Deleted it for now, will see today what's up again.