Microsoft has a message for Teams users: make sure your PC has enough RAM, or you might end up looking worse in your next meeting. The company is leaning on the Microsoft Teams Efficiency mode feature to keep the app running on modest hardware, and while it delivers real speed gains, it quietly trades off things like camera quality in the process.
According to a support document seen by Windows Latest, Microsoft says the Teams engineering team is focused on “delivering a consistent, high-quality experience across every platform,” from hardware-constrained devices to mobile workers. In practice, that means the Microsoft Teams Efficiency mode can kick in and start trimming resources—including your video resolution—without your say-so.
#1 Why Microsoft Teams Efficiency Mode Can Make You Look Worse
Teams normally adjusts meeting resolution automatically, so you don’t get a slider to control how you appear on camera. But with Efficiency mode active, that automatic adjustment can work against you.
Microsoft explains in its support document: “This mode reduces processor, memory and network usage and is ideal for lower performance devices or those under heavy load. Turning this on may affect some functionality such as camera resolution.”
In other words, when your PC is under pressure, Teams can drop your camera resolution to conserve resources. You may not notice the difference coming, but the people on the other end of the call might.
Microsoft frames this as a “better experience,” arguing that “great collaboration experiences shouldn’t depend on having the latest hardware” and noting that “many of our customers rely on older devices, entry-level laptops.” That’s a fair goal, but it comes with a real tradeoff you shouldn’t have to make silently.
#2 The three Efficiency mode settings
The good news is that you’re not stuck with whatever Teams decides on its own. There are three options under Efficiency mode, and you can pick how aggressively the app manages resources:
- Use only when resources are low (default): Teams cuts processor and memory usage only when it detects reduced resources are available.
- Never use efficiency mode: Teams prioritizes a richer experience, using more system resources at all times.
- Always use efficiency mode: Teams reduces processor and memory use continuously, whether you like it or not.
When I tested this on a $2,500 HP Spectre with 32GB of RAM, Efficiency mode was already switched on—but it only actually kicked in when the system detected low free resources. So on a beefy machine, the feature mostly sits idle until it’s genuinely needed.
#3 The performance benefits
Microsoft’s pitch is that Efficiency mode earns its keep. The company says Teams can launch up to 20% faster on PCs with 8GB of RAM or less, which is a tangible win for owners of older or budget hardware.
The mode watches CPU usage closely, and your camera resolution can be reduced based on that load. If Teams has to choose between camera resolution and audio on a CPU-constrained PC, it will optimize for audio instead.
Microsoft says this lets “users on hardware-constrained devices maintain a high quality of their meeting experience despite the disproportionately higher thermal throttling rates.” So the idea is to keep your meeting usable—and your laptop from turning into a space heater—when hardware is stretched.
#4 Why Microsoft won’t make Teams native
Here’s the bigger picture, and it’s where the frustration builds. Microsoft has repeatedly said it’s committed to building native Windows apps and eventually ditching WebView entirely. But Teams—and Outlook, reportedly—aren’t expected to go native any time soon; Microsoft says it’s “almost impossible at this point.”
Instead of rewriting the app on a modern native stack, Microsoft is leaning on Efficiency mode and a Chromium-based architecture to manage memory. The app outside Efficiency mode depends on Chromium to reduce its footprint, and that’s not changing soon.
Teams for Windows 11 and Windows 10 will eventually get a larger upgrade with more RAM-based optimizations, such as stopping background image downloads. But until the underlying architecture shifts, Efficiency mode is the de facto performance solution—and that means the camera-quality tradeoff stays on the table.
Microsoft acknowledges that consumers “expect Teams to be fast, responsive, and ready when they need it,” yet it hasn’t committed to fixing the RAM-heavy design at its root.
What This Means for You
If you run a low-end PC or one that’s already near its memory limit, you may already see your camera resolution drop during busy meetings—and you probably didn’t choose that. The fix is simple: either free up system resources, or open the Efficiency mode settings and switch to “Never use efficiency mode” if you’d rather look sharp than save a little memory.
On a powerful machine, the feature is mostly harmless, since it only engages under real load. But it’s worth knowing it exists and that it can quietly change how you appear on camera.
How to Get It
Efficiency mode ships with the current Microsoft Teams app for Windows 10 and Windows 11. To adjust it, open Teams and look for the Efficiency mode settings, where you can choose between the three options listed above. Keep the app updated through the normal update path, and Microsoft says further RAM optimizations are coming in a later upgrade.
Source: Windows Latest
Over to you: Do you keep Microsoft Teams Efficiency mode on auto, or switch it off to protect your camera quality?
