https://bugs.winehq.org/show_bug.cgi?id=53954
--- Comment #4 from Nikolay Sivov bunglehead@gmail.com --- Relevant part is this:
010c:fixme:process:NtSetInformationProcess(0xffffffffffffffff,0x0000004d,0x20f850,0x0000000c) stub
So SetProcessInformation() is called. You can check if failure from ntdll is a problem by returning STATUS_SUCCESS for ProcessPowerThrottlingState class.