The situation when a once-bright phone Xiaomi suddenly begins to “think”, open applications for five seconds and freeze when scrolling the feed, is familiar to many owners of Chinese smartphones. This is annoying, disrupts the work rhythm and makes you think about buying a new device, although often the problem lies not in the hardware, but in software layers.
The shell MIUI (or new HyperOS) is famous for its functionality, but over time it accumulates digital garbage, cache and background processes that stifle productivity. Before taking the device to a service center or running to the store, it is worth carrying out a comprehensive “spring cleaning” and optimizing the system on your own.
In this guide, we will look at specific steps: from simple storage cleaning to advanced settings for developers that will really return the phone to its former agility. You will learn why the battery affects the speed of the processor and how to permanently disable system advertising that eats up resources.
Diagnostics of the causes of slowdown
The first thing you need to do before taking drastic measures is to understand the nature of the “lags”. The most common culprit is overflowing internal storage. When free disk space falls below a critical level (usually 10-15% of the total), the memory controller cannot distribute data effectively, which leads to severe latencies.
The second common scenario is overheating. Modern processors Snapdragon i Dimensity have built-in protection mechanisms: when they reach a certain temperature, they artificially reduce the clock frequency (throttling) so as not to burn out. If your Xiaomi hot to the touch, no apps will help until it cools down.
⚠️ Attention: If the phone gets warm even in standby mode or while simply typing, this may indicate a physical problem with the battery or power controller. In this case, software optimization is powerless.
It is also worth checking the status of the RAM. Unlike a PC, Android can work with completely full RAM, but if there are too many background processes, the system begins to constantly unload and load applications again, creating a “freezing” effect.
Cleaning storage and application cache
The standard Security application from Xiaomi is a powerful tool, but sometimes its built-in algorithms are not enough for deep cleaning. Start by manually deleting “heavy” messengers, such as Telegram and WhatsApp. These applications have been accumulating media files for years, which take up gigabytes of space.
Go to the settings of the specific application and find the “Storage” item. There you will see a clear division: how much space the app files themselves take up, and how much space is taken up by the cache and media. Clearing the cache is safe and will not delete your correspondence, but will free up valuable resources.
- 🗑️ Delete folders
MIUI/debug_logandMIUI/gallery/cloudif you do not use the Xiaomi cloud service - error logs often accumulate there. - 📸 Transfer photos and videos to your computer or to the cloud (Google Photos, Yandex.Disk) to free up the internal memory of your device.
- 📲 Uninstall pre-installed games and applications that you have never used (Bloatware).
Don't forget about the folder Download (Downloads). Browsers and instant messengers often save APK installation files, PDF documents and pictures there that are no longer needed. Regular revision of this directory can instantly free up several gigabytes.
☑️ Quick cleaning checklist
Disable system advertising and services
One of the hidden reasons why slows down the Xiaomi phoneis the aggressive MSA advertising system (MIUI System Ads). It runs in the background, loads banners into system applications and consumes traffic and CPU time.
To disable advertising, you need to go to the settings of each system application (Music, Themes, Explorer, Security) and find the "Receive recommendations" switch. However, there is a more global way - disabling the MSA service through account settings.
Go to Settings → Passwords and security → Access to personal data. Find the service msa in the list and deny it access. The system will ask you to wait 10 seconds - do this and confirm the action. The effect becomes noticeable almost immediately: the interface becomes more responsive.
⚠️ Attention: The MIUI settings interface may differ depending on the shell version and firmware region. If you don't find the "Access to personal data" item, try searching for "Special options" or use a search in settings.
To completely disable advertising, it is also recommended to disable the "GetApps" service in the same personal data access menu if you do not use this application store.
Optimizing animations and developer settings
The visual smoothness of Android largely depends on transition animations. If the smartphone's processor is not the latest, rendering complex effects can create the illusion of slowness. By disabling or speeding them up, you will subjectively speed up the operation of the device significantly.
To do this, you need to activate the developer mode. Go to Settings → About phone and quickly click 7 times on the item "MIUI Version" (or "OS Version"). After the message “You have become a developer” appears, return to the main settings menu.
Now go to Advanced settings → For developers. Scroll down to the Drawing section. Find three options: "Window Animation", "Transition Animation" and "Animator Duration". Change their value from standard 1x to 0.5x or completely disable (Off.).
| Animation parameter | Standard value | Recommended for speed | Effect |
|---|---|---|---|
| Window animation | 1x | 0.5x | Fast opening/closing applications |
| Animation of transitions | 1x | 0.5x | Instant switching between screens |
| Animator duration scale | 1x | Off | Removes delays when pressing buttons |
This procedure does not increase the actual processor power, but saves the eye from waiting for completion animation cycles, making the use of the smartphone much more comfortable.
Managing startup and background processes
Many applications register themselves in startup and continue to work even after you close them with a swipe. They consume RAM and processor cycles, slowing down the work of active tasks. MIUI has a built-in control mechanism that needs to be done correctly. configure.
Go to the "Security" application (green icon with lightning), select the "Battery consumption" section. Here you will see a list of apps that most actively consume battery in the background. This is normal for social networks and instant messengers, but not for calculators, flashlights and games.
Set up restrictions for unnecessary applications. click "Autorun" and disable it. Also set the background activity limit to the "No restrictions" mode only for those applications from which you need instant notifications (for example, Telegram), and allow the rest to work in the background only when the screen is open.
Secret code for resetting network settings
If speed problems are related to the Internet, try entering in (dialer) code ##4636##. In the "Phone Information" menu, you can reset the preferred network type by selecting LTE Only, but do this with caution so as not to lose connection.
Reset settings and radical measures
If neither clearing nor disabling animations helped, and Xiaomi is still running slowly, perhaps the system has accumulated critical errors or conflicts after many updates. In this case, the most effective solution would be a full reset to factory settings.
Before performing a reset, be sure to back up all important data to your computer or to the cloud, as the process will delete all information from the internal memory of the device.
The procedure is performed via menu: Settings → About phone → Reset settings → Delete all data. The phone will reboot and return to the "out of the box" state. For the first 10-15 minutes after turning on, it will work slowly while the system indexes files and optimizes applications - this is normal behavior.
⚠️ Attention: Do not restore all applications from a Google backup at once. It is better to install only the essentials manually. Often, it is the old backup that restores the old “buggy” settings along with the apps.
Factory Reset eliminates 90% of software brakes caused by accumulated garbage and system update conflicts.
The impact of battery wear on performance
Few people know, but the condition of the battery is direct affects the speed of the smartphone. When the battery is severely degraded (wear more than 20-30%), it cannot produce the necessary peak current to operate the processor under load.
The Android system, seeing unstable voltage, forcibly lowers the processor frequency so that the phone does not suddenly turn off in the middle of a call or game. This manifests itself as severe lags, especially when the charge drops below 40%.
You can check the battery status using third-party utilities, for example AccuBattery, or through the engineering menu. If the capacity is significantly lower than declared, no amount of software optimization will remove the brakes—the battery will need to be replaced at a service center.
Avoid using the phone while charging if it is already heating up. The combination of processor load and charging current accelerates battery degradation and provokes throttling.
Why does the phone slow down immediately after updating MIUI?
After a major update of the Android system or MIUI shell, files are re-indexed in the background and all installed applications are optimized for the new version. This process can take from several hours to 2-3 days. During this time, the phone may heat up and work slower than usual. Give it time to complete background tasks.
Will installing “pure” Android instead of MIUI help?
Installing custom firmware (LineageOS, Pixel Experience) can really significantly speed up an old device by removing the heavy Xiaomi shell. However, this requires unlocking the bootloader (which erases data), voids the warranty, and may cause banking apps and the camera to not work. Suitable only for experienced users.
How often do you need to reboot your Xiaomi smartphone?
Modern versions of Android do not require a daily reboot. However, it is recommended to reboot the device at least once every 3-5 days. This allows you to clear RAM from frozen processes, reset network module errors and shut down incorrectly running services.
Are accelerator applications (Clean Master and analogues) harmful?
Yes, in most cases they are harmful. Such applications themselves run in the background, show ads and constantly “kill” processes, which the system immediately starts again, wasting even more resources. The built-in Security tool from Xiaomi is quite enough to maintain the system.
Can a MicroSD memory card cause slowdowns?
Yes, if you use a slow memory card (class 4 or 6) or if it is damaged. The system may try to read data from it, waiting for a response, which causes interface freezes. Try removing the card and checking the phone's operation without it. It is also not recommended to install applications on a memory card.