Did your Laptop battery is draining quickly?
Again a complex task that involves hardware processing also drains battery life as well.
Before that confirm your laptop is unplugged and running on battery.
And reducing the screen brightness significantly improves battery efficiency.
Another way to reduce the displays power draw is to turn it off more often.
Also, there is an option to automatically turn on this feature when your battery reaches a certain percentage.
Again if not required then disable keyboard back-lighting, which also drains the battery.
Lets Optimize it