We noted down the temps of the several measured components in the lappy/game computer of my son, so if after cleaning the temps still don't drop enough, remove heat sink and apply after good cleaning new heat sink compound, i have 2 large tubes of it in supply here, don't use too much, but do use good quality.
Cleaning the laptop ventilator it needs removing it to get to the cooling sink it blows through, lots of fluff otherwise stay in the system.
the cooling system on this Lenovo 17" I 7 was good, just maintain the system keeping it clean, the fan is running slow, and i have a ball bearing spare if need be.
On the desktop i have a tool that gives the components temperature so i can keep track of it all the time.
My last laptop worked 8 years, keeping it clean pays off, still woks, but the screen is falling apart, and i needed a faster one.
They get used for 6 to 10 hours a day, battery is not in the laptop, kept separate.
Never skimp on cooling it is a life saver for your gear.
If it is computers, satellite receivers or radio's....