Hello David
I don't use the pc to play games, so I can't give you a solution. Just tell you that I have set:
Power Options / Processor Power Management:Processor minimum state5% settingMaximum processor state Configuration 90%Processor Performance Enhancement ModeConfiguration Disabled
And that way I can work normally, and although the times are quite long I keep the average temperatures at +/- 35ºC and the maximum at +/- 42ºC. (with 26º at the air inlet to the pc case).
Waiting for the bios update with the 0x129 microcode, which I hope will solve all the problems.