How to Get Rid of Lag on Your Computer or Wi-Fi

Lag is a noticeable delay between an action and a response. It can happen while browsing, video calling, gaming, streaming, or using a computer or phone. The phrase “get rid of lag” does not point to one universal fix: the cause may be a slow network, a busy or overheating device, an app problem, or a distant online server.

These steps help you narrow down the cause and try low-risk fixes first. Before changing settings, save your work and make sure you can sign back in to your network. Menu names and locations may differ slightly by device and software version.

What You’ll Need

The device and app or activity where you notice lag.
Access to your Wi-Fi router, if the problem appears network-related.
A way to compare results, such as loading the same page or repeating the same action.
Your device’s operating system and router instructions for model-specific options.

Step-by-Step

Describe the delay. Note what you are doing, when the lag starts, and whether it is a pause, choppy movement, delayed controls, or buffering. Check whether it affects one app, one device, or several devices. A single app points toward its settings or service; multiple devices struggling online suggests a network issue.
Restart the affected app and device. Close the app fully, reopen it, and test again. If the delay remains, restart the computer, phone, console, or streaming device using its normal power menu. This can clear temporary problems. Save open files first; avoid holding the power button unless the device is frozen and ordinary shutdown is unavailable.
Separate internet lag from device lag. Try a task that works offline, such as opening a locally stored file or moving through device settings. If that is also slow, focus on device performance. If offline use is smooth but online activities lag, check Wi-Fi, the internet connection, or the remote service.
Check the connection. If only one device has trouble, move it closer to the router and try again. Walls, distance, and interference can weaken Wi-Fi. If possible, test a wired Ethernet connection; if it is smoother, Wi-Fi is likely part of the problem. Pause large downloads and other bandwidth-heavy activity on your network while testing.
Restart the router if several devices are affected. Use its normal restart procedure or follow the manufacturer’s instructions. Wait for it to reconnect, then repeat the same test. Do not press a recessed factory-reset button: that can erase network settings and is not the same as restarting.
Check whether the device is overloaded. Close apps, browser tabs, downloads, and background tasks you are not using. On a computer, check the built-in activity or task manager for an app using unusually high processor, memory, disk, or network resources. Quit only apps you recognize; don’t stop unfamiliar system processes.
Look for heat and free storage. Make sure vents are not blocked, place the device on a firm surface, and let it cool if it feels unusually hot. Check available storage in system settings and remove files only if you have verified they are backed up or no longer needed. A nearly full drive or heat-related slowdown can make local tasks feel delayed.
Update carefully. Install operating-system, app, and device updates through the built-in update tools or the manufacturer’s official support channel. Updates can fix performance or connection faults, though they may require a restart. Avoid driver-updater ads and unfamiliar downloads; don’t install several changes at once.
Test the app or service. Check whether other apps or websites work normally. If one online game, video call, or website remains slow while others are responsive, the service, its server location, or its own settings may be responsible. Try again later or consult the service’s official help page rather than changing unrelated device settings.
Change one relevant setting, then retest. For a game, lower demanding graphics options such as resolution, shadows, or visual effects if the device struggles to render smoothly. For video calls, close competing apps and use a stable connection. For browsing, disable an extension only if you suspect it is causing trouble, then test. Record the original setting so you can restore it.

Common Mistakes

Changing everything at once: You will not know which change helped, and reversing the problem becomes harder.
Confusing lag with low frame rate: Online delay often comes from the network or server; choppy local animation can come from graphics load or device performance. The symptoms can feel similar but need different fixes.
Assuming a speed test explains every problem: A speed test is a snapshot of the connection, not a complete diagnosis. Wi-Fi interference, intermittent drops, server distance, and device load can still cause lag.
Using a factory reset as a first step: It may erase settings or data and usually is unnecessary for a temporary slowdown. Back up important information and consult device support before considering a reset.
Installing “speed-up” tools from unknown sources: These can add unwanted software or create security risks. Prefer built-in system tools and official support guidance.

Tips

Repeat the same task before and after each change; otherwise, differences in activity can make the result misleading.
Keep device software and apps updated, but save work and allow time for restarts.
For better Wi-Fi, place the router in an open, central location rather than inside a cabinet or behind large obstacles.
If several people share a connection, coordinate tests so simultaneous streaming or downloads do not obscure the result.
Keep a brief note of what you changed and whether it helped. This makes it easier to undo a setting or explain the issue to support.

Troubleshooting

Only one app still lags: Close and reopen it, check for its updates, and review its official help or service-status information. If other apps are fine, avoid resetting the whole device.

Every device is slow online: Restart the router once, check that its cables are secure, and test again. If the issue continues across wired and wireless devices, contact your internet provider or router support; the fault may be outside your home network.

Only Wi-Fi is slow: Test near the router and compare with Ethernet if available. If proximity helps, improve router placement or consult its instructions about Wi-Fi bands and channel selection. Options vary by model, so do not guess at advanced settings.

The device is slow even offline: Close resource-heavy apps, check storage and heat, and install pending official updates. If the device remains unusually slow or shows errors, consult the manufacturer’s support rather than deleting system files or disabling security protections.

Lag returns after a short time: Note what is running and whether the device is heating up, downloading, or losing its connection. A recurring pattern can distinguish a resource problem from an intermittent network or service fault.

Frequently Asked Questions

What causes lag?

Common causes include weak or unstable internet, a busy device, demanding graphics, overheating, app faults, or a slow remote server. The right fix depends on where the delay starts.

Does restarting always fix lag?

No. A restart can clear a temporary fault, but it will not fix a weak Wi-Fi signal, an overloaded service, or a persistent hardware issue.

Why is my internet fast but still laggy?

A speed test may not show brief connection drops, high delay to a particular server, Wi-Fi interference, or congestion at a specific time. Compare more than one app and test near the router.

How do I reduce lag in online games?

Use a stable wired connection if practical, pause other heavy network activity, and choose the game’s appropriate nearby server when that option is available. If movement is choppy offline too, lower graphics settings or check device performance.

Can a VPN get rid of lag?

Usually, a VPN adds another network route and may increase delay. It could help only in particular routing situations; compare the same activity with and without it, and use a trusted provider.

When should I contact support?

Contact your internet provider, app service, or device manufacturer when the problem persists after basic checks, affects multiple devices, or comes with connection or hardware errors. Share what you tested and the results.

Further reading: Microsoft Support. Details can change, so check the official page for anything that matters to you. Spotted a mistake? Tell us. How we write an answer.