The situation where once-fast Xiaomi suddenly starts to run slowly is familiar to many owners: the screen reacts with a delay, apps open longer than usual, and scrolling through the social media feed turns into a twitchy slideshow.This does not necessarily mean a hardware breakdown or the need to urgently go to the service center.
Most often, the problem lies in software conflicts, overflow of storage or improper operation of system processes MIUI. Android operating system, on which the shell is based, requires regular maintenance and competent resource management. Understanding the causes of the slowdown is the first step to restore comfortable use of the gadget.
In this article, we will look at proven optimization methods that will help restore the device to its former speed, and we will look at both standard cleaning tools and hidden features for developers available to every user.
Diagnostics and cleaning of system debris
The first thing to do when a smartphone is slowing down is to do a deep cleaning, and over time, temporary files, remnants of deleted apps and browser cache accumulate in memory, and this data takes up space and prevents the system from quickly finding the information it needs.
Use the built-in Security for Initial Diagnostics app, which automatically finds unwanted files and prompts you to delete them, but automatic cleanup often doesn't affect the deep cache of applications, which can take up gigabytes.
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Periodically go to the storage settings and manually check the Download folder – there are often old APK installation files and documents that are no longer needed.
For more careful cleaning, go to Settings → Memory. Here you will see detailed site statistics. Pay special attention to the Other section, where error logs and temporary update files are often hidden.
- 🗑️ Remove the cache of heavy apps: messengers, browsers and social networks through the settings of each application separately.
- 📸 Check the gallery for duplicate photos and “serial” shooting that takes up a lot of space.
- 📂 Clear the folder. MIUI in the file manager by deleting logs and temporary update files.
Remember that a crowded drive is one of the main reasons why Xiaomi has slowed down: Try to keep at least 15-20% of the total storage space free for the system to work properly.
Managing Autoboot and Background Processes
Many users are unaware of how much resources apps running in the background consume. Autoboot allows programs to start immediately after the phone is turned on, consuming RAM and battery power.
To stop this process, go to the Security settings and find the Permission → AutoStart option. Here you will see a full list of programs that start automatically. Leave only those that you need instant notifications from, for example, messengers or alarms on.
☑️ Optimizing autoloading
Also worth checking is the energy saving settings for each application: MIUI aggressively manages background processes, but sometimes settings get confused, and make sure that the background activity limit is set for rarely used programs.
It's important not to overdo it: if you turn off system services or critical components, the phone may start to run unstable. Be careful of applications that you don't know what they're supposed to do.
⚠️ Warning: Do not disable Autoplay for Google Play Services, Mi Cloud and System Components MIUI, Otherwise, the phone may lose some functionality or start to work incorrectly.
Customization of animation and interface for speed
Visual smoothness is often perceived as speed. If the animations are too long, the phone seems "reflective." Xiaomi has a hidden developer menu to speed up the response.
To activate the menu, go to Settings → About Phone and quickly click on the MIUI version 7 times. After the notification “You became a developer” appears in the settings menu, a new section Advanced Settings → For developers will appear.
How to find window scaling?
Find the animation zoom parameters. They're set to 1x by default. Change them to 0.5x. This won't take away the animation completely, but it will make the transitions between the screens twice as fast, which will visually speed up the interface.
- ⚡ Reduce the scale of animation windows to 0.5x for instantaneous application opening.
- 🔄 Reduce the duration of transition animations so that menus close faster.
- 🎨 Turn off the live wallpaper if used - they put a lot of CPU load.
This simple setup is particularly effective on models of the past, where hardware power can no longer cope with the heavy visual effects of modern versions of the shell.
Problems with memory and storage
The type of memory and the degree of memory filling directly affect the speed of writing and reading data, and when the internal storage is almost full, the speed of flash memory decreases, causing lags throughout the system.
Modern smartphones use UFS memory, which works faster when there is free space, and if more than 90% of the volume is occupied, the memory controller starts to work slower, trying to find free cells to write.
| Status of memory | Impact on speed | Recommended action |
|---|---|---|
| Occupied < 70% | Maximum speed | Maintain current levels |
| Employed 70-85% | Minor decline | Delete unnecessary files |
| Occupied > 90% | Strong brakes and leggings | Urgent data cleanup or transfer |
Use cloud storage or external memory cards (if there is a slot) to transfer photos and videos, which will free up internal memory for the system and installed applications.
It’s also worth checking the status of the microSD card. Cheap or old cards can have a low write speed, which causes hang-ups when the system accesses files on the card.
System update and resetting
Sometimes problems are caused by bugs in the current firmware version. Xiaomi developers regularly release updates that fix optimization errors and improve stability.
You can check for updates in Settings → About Phone. If a new version is available, it is advisable to upgrade. However, if the phone is old and new Android, the situation may worsen.
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If after updating the firmware, the phone began to work worse, wait 2-3 days: the system needs time for background optimization and re-indexing of files.
In the extreme case, when software methods don't work, it helps to completely reset to factory settings, which is a radical method that deletes all the data, but often returns the device to factory speed.
⚠️ Before performing a reset (Wipe Data), be sure to back up all important contacts, photos and documents, as it will be impossible to restore them after a reset without a backup.
To reset, go to Settings → About Phone → Reset. Select “Erase All Data.” The device will restart and begin the cleanup process, which can take up to 10-15 minutes.
Hardware restrictions and overheating
Remember that any electronic gadget has its own lifespan and limit, and if your phone’s processor doesn’t physically pull heavy apps or new versions of websites, it’s hard to fix software.
A common cause of sudden brakes is overheating. As the temperature rises, the system automatically lowers the CPU frequency (trottling) to avoid damaging the components, at which point the phone starts to run very slowly.
Check if the case is warming during use. If so, remove the case, close the heavy applications and let the device cool. Also, the cause of heating and lags can be a faulty battery or problems with the heat paste inside the case.
- 🌡️ Avoid using a navigator or gaming on charge – this causes heavy heating.
- 🔋 Old battery may not give the desired voltage, causing unstable operation.
- 📱 Direct sunlight quickly heats the body and provokes trolling.
If the phone is slowing down even in simple tasks and at normal temperature, it may be a problem in the degradation of memory or other hardware components, which requires diagnosis in the service.