Today, I changed the parameter of "Display1_downscalingsupported" and "Diplay1_Enabledynamicscailing" in the registry of win 7 of my PC.

It was to improve my PC's performance.

Especially, according to this page, "Display1_Enabledynamicscailing" works to keep my temperature low in my computer. It will automatically adjust the frequency of the CPU to reduce heat and conserve power.

How well will it work?