You can check in the windows power options; the “processor power management” can be adjusted when you have power plugged in.
Go to: control panel=> hardware and sound => Power options=> edit plan settings =>change advanced power settings.
Under Processor power management, check that the processor maximum state is at 100% when plugged in.
This may occur if you are using a power adaptor that has a lower wattage than the one recommended for your system or if the power adaptor is damaged.
You can also check with the OEM to see if there is some kind of feature that controls this, maybe from the BIOS.
Still didn't solve the problem, but thx for solution... maybe this is a hardware problem on processor or motherboard