The Key to Consistently High Gaming Performance on Intel 4th-9th Gen Laptops: Undervolting
Every Intel-based gaming laptop since 2013 has too much voltage going to the processor from the factory.
This can be decreased by up to 200mV (millivolts) to significantly reduce the operating temperatures and improve performance.
The increased thermal headroom afforded by reducing the voltage translates to higher sustained clock speeds than with more voltage.
It is believed that computer manufacturers do this intentionally to decrease the lifespan of the product.
On average we see 20-30% FPS improvement in games + 20-30% reduced operating temperatures.
Below is a guide to undervolt a Intel i7 8th Gen, the same ideology applies to other Intel processors, but the exact voltage reduction for your particular processor can be found only via extensive testing or by hiring Mr. Robot: