Performance Mode, frequently branded as Efficiency Mode in recent updates, is a feature in Microsoft Edge designed to minimize power usage and resource consumption. It accomplishes this by modifying tab activity, putting background tabs to sleep more aggressively, and throttling CPU usage for inactive browser processes. While beneficial for consumer laptops running on battery power, this aggressive resource management can cause severe issues in a corporate environment. In web-based enterprise applications that require persistent background connections (such as VoIP clients, live dashboards, or continuous data syncing tools), Performance Mode can inadvertently terminate or throttle these critical tabs, leading to data loss or dropped connections.
This guide explains how to completely disable Performance Mode (Efficiency Mode) system-wide in Microsoft Edge using Group Policy, ensuring that background web applications remain active and responsive.
Disable Performance Mode via Group Policy
To enforce a strict block that prevents the browser from aggressively sleeping tabs and throttling CPU, we must deploy an administrative template. Note that this requires Windows 11 Pro, Enterprise, or Education editions.
- Log into Windows 11 with an Administrator account.
- Press the Windows Key + R to open the Run dialogue box.
- Type
gpedit.mscand press Enter to launch the Local Group Policy Editor. - In the left-hand navigation pane, strictly follow this exact path:
Computer Configuration > Administrative Templates > Microsoft Edge - In the right-hand pane, locate the policy named Enable efficiency mode.
- Double-click the policy to open its configuration window.
- Select the radio button next to Disabled.
- Click Apply, then click OK.
Verify the Configuration Lockdown
Group Policy changes require the browser to read the registry upon its next launch. Close all active instances of Microsoft Edge.
To verify the restriction is active, reopen Microsoft Edge and navigate to edge://settings/system. Scroll down to the “Optimize Performance” section. The toggle switch for “Efficiency mode” will be greyed out and locked in the ‘Off’ position. A briefcase icon will appear alongside a message stating, “Your browser is managed by your organization.” The browser will now treat all tabs and processes with standard priority, ensuring your enterprise web applications execute without unexpected throttling or suspension.