To fix lag in a mobile game, first work out which kind of lag you have. Choppy, stuttering movement is a frame-rate problem: close other apps, restart the phone, let it cool down, switch off Low Power Mode or battery saver, and lower the game’s graphics settings. A delay between your tap and what happens on screen is input lag, often caused by Bluetooth audio or a phone in power-saving mode. Players teleporting and actions snapping back in online games is network lag, which means stronger Wi-Fi, no VPN and no big downloads running at the same time.
What kind of lag do you have? #
| What you see | Type of lag | Usual cause |
|---|---|---|
| Stutter, choppy motion, low frame rate | Frame rate | The phone is overloaded, hot, in power saving, or the graphics are set too high |
| Taps feel late, sound out of sync | Input or audio | Bluetooth headphones, power saving, a busy phone |
| Players teleport, moves get undone, disconnects | Network | Weak Wi-Fi or signal, distance to the server, VPNs, downloads |
| Freezes, then the game closes | Stability | Low memory, a bug, an outdated app |
If your game is crashing rather than lagging, our guide to what to do when a mobile game keeps crashing is the better place to start.
How to fix frame-rate lag #
On any phone #
- Close the game completely and reopen it. Swipe it away from the app switcher, not just to the home screen.
- Restart your phone. It clears out whatever built up since the last restart.
- Let it cool down. Hot phones slow themselves on purpose, which is why games often run well for ten minutes and then stutter. Our guide to phone overheating while gaming explains how to keep it cool.
- Lower the in-game graphics. Drop quality, shadows or effects, or pick a lower frame-rate target. A steady 30 or 60 frames per second feels better than a jumpy 90.
- Free up storage. Phones and games both slow down when storage is nearly full.
- Update the game and your system software. Performance fixes often arrive in updates.
On iPhone #
- Turn off Low Power Mode. According to Apple, Low Power Mode limits the display to 60 Hz on iPhones with ProMotion, turns off background app refresh and reduces some visual effects. Turn it off in Settings > Battery (under Power Mode on iPhone 15 and later) or from Control Center.
- Close heavy apps that are actually running, such as navigation, a video call or screen recording. Most apps in the app switcher are paused and don’t need closing.
- Turn off Background App Refresh for apps that don’t need it, in Settings > General > Background App Refresh.
On Android #
- Turn off Battery Saver or power-saving mode. Many phones reduce performance and refresh rate to save battery.
- Check the refresh rate. Look in Display settings for a refresh-rate or motion-smoothness option and choose the higher setting if your phone offers one.
- Use your phone’s game mode. Many Android phones include one, such as Samsung’s Game Booster, which can prioritize the game and block notifications while you play.
- Skip “RAM booster” apps. Android manages memory itself, and these apps rarely help. Some add ads of their own.
- Leave developer options alone unless you know exactly what a setting does. Several of them make games slower, not faster.
How to fix input lag #
- Use wired headphones or the phone speaker for timing and rhythm games. Bluetooth audio adds a delay you can hear, which makes it feel as if your taps are late.
- Turn off power saving. A lower refresh rate means the screen updates less often after your tap.
- Use the higher refresh rate if you have one. At 60 Hz the screen shows a new frame every 16.7 milliseconds. At 120 Hz it’s every 8.3.
- Check the game’s calibration settings. Rhythm games often have an audio or visual offset setting you can adjust.
- Keep the screen clean and your hands dry. Missed and late touches often come from the screen, not the phone.
How to fix network lag #
- Move closer to your router, or use a 5 GHz Wi-Fi network if your router offers one.
- Pause downloads and video streams on the same network, including on other devices.
- Turn off your VPN. It adds a detour between you and the game’s servers.
- Pick the nearest server region in the game’s settings, if it has one.
- On mobile data, look for a stronger signal. One bar is enough for messages but not for an online game.
- Restart your router if everything on your Wi-Fi feels slow.
Offline games avoid network lag entirely. Our list of offline mobile games covers good ones that don’t need a connection at all.
What if your phone is just too old? #
There are thousands of Android models and years of iPhones, all with different chips, memory and screens. Game makers pick a range of phones they support, and heavy 3D games often leave older ones behind. If a game says your device isn’t compatible, or it stutters even at its lowest settings, your phone is below what the game needs.
Your options are to stick to lighter games, which usually means 2D ones, or to stream bigger games instead of running them on the phone. Our guide to cloud gaming on your phone covers that route and its limits.
Why some games feel the same on any phone #
How a game is built makes a big difference on older phones. In Flappy Kittens, the game’s physics run on a fixed 120 Hz clock, separate from how fast your phone can draw the screen, and the whole scene is drawn in a single graphics canvas. On a slower phone you may see fewer frames, so motion looks less smooth, but gravity, flap height and pipe speed stay exactly the same. The game also accepts a tap that lands up to 120 milliseconds early, so a tiny hiccup doesn’t cost you the run.
Frequently asked questions #
Why does my game lag after 10 or 15 minutes? #
Usually heat. As the phone warms up it lowers its performance to protect itself, and frame rates drop. Unplugging the charger, removing the case and lowering graphics settings help.
Does closing background apps help on iPhone? #
Rarely. iPhone pauses most apps in the background, so closing them makes little difference. Closing apps that are actively running, like navigation or a video call, can help.
Do RAM cleaner apps fix lag? #
Generally no. Modern phones manage memory on their own, and clearing it just makes apps reload. Some cleaner apps are mostly there to show ads.
Why does my game lag on Wi-Fi but not on mobile data? #
Your Wi-Fi may be crowded, far from the router, or busy with other downloads. Try the 5 GHz network, move closer, or pause other devices’ streaming.
Is 60 FPS good enough for mobile games? #
For most games, yes. 120 FPS looks smoother and makes the screen respond a little faster, but a steady 60 feels better than an unsteady 120.