Efficiency mode in Windows optimizes background tasks and reduces energy consumption by adjusting priorities and clock speeds.
To turn off Efficiency Mode for certain programs in Windows 11, open Task Manager, find the program, and click the Efficiency Mode button.
You can manually force Efficiency Mode on specific programs by selecting them in Task Manager and enabling Efficiency Mode.
If Efficiency Mode is greyed out on Windows 11 for a program, it means the feature is not supported for that application; consider updating the OS for missing Efficiency Mode.