Are you experiencing low frame rate (FPS) when playing DotA or any other games?
Here is another simple tip that might help
- Right click windows start button, go click settings

2. Choose Gaming > Game Mode.

3. Turn Game Mode On or Off

By turning this ON
Windows prioritizes your gaming experience by turning things off in the background. When you’re running a game.
Helps achieve a more stable frame rate depending on the specific game and system.
Note : Game Mode is turned on by default.
If you want to turn it off.
Press the Start button , type Settings in the search box, and then select Settings.
Choose Gaming > Game Mode.
Turn Game Mode Off.