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very slow function key screen brightness controls

HP Recommended
HP Zbook 15
Microsoft Windows 10 (64-bit)

after updating the intel management engine and chipset the screen brightness controls using the function keys are very slow.

it will do 1 "tick"of about 10% brigtness per 2-3 seconds while before i could traverse most of the 0 to 100 brightness settings.

i have tried updating the hp hotkey support driver but this was to no avail, i also have already updated bios

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