Modern smartphones of the Chinese brand Xiaomi are famous for their performance and functionality, but even flagship models can eventually face performance problems.The situation when Xiaomi begins to slow down, the interface responds with a delay, and applications open reluctantly, is familiar to many users. This phenomenon often becomes an unpleasant surprise, especially if the device was used carefully.
The reasons for the slowdown may be software related to the MIUI shell, or hardware related to the physical wear of components. Understanding the root of the problem is the first step to restoring comfort to the gadget. In this article, we will discuss the main factors affecting the stability of the system.
Don't panic or take your phone to the service center right away. In most cases, the accumulation of cache and background processes is the main reason for slowing down, and the right settings allow you to return the device to its former speed without losing data.
Overflow of internal memory and cache
One of the most common reasons Xiaomi is starting to lag is the critical filling of the built-in storage. When the free disk space comes to an end, the Android operating system has difficulty creating temporary files and swap files, which leads to noticeable "freezes" of the interface.
Users often forget that instant messengers and social networks take up gigabytes of space over months of use, high-resolution photos and streaming cache also contribute, and you need to regularly check what takes up the most space.
Use a built-in cleaning tool or third-party file managers to free up space. Removing unused applications and cleaning up the cache of heavy programs is an effective way to improve system performance. Don't allow more than 90% of memory to fill up.
- 📱 Remove old screenshots and videos from the gallery.
- 🗑️ Clear the app cache in the storage settings.
- 📥 Move files to a memory card or cloud storage.
- 🧹 Use the “Security” app to automatically clean.
⚠️ Warning: Do not delete system files and folders with unknown names manually, even if they take up a lot of space.
Processor overheating and trottling
The physical limitations of hardware play an important role in the stability of a smartphone. If the device body heats up strongly during use, a protective mechanism known as trottling takes effect, and the processor forcibly reduces its frequency to avoid overheating and failure.
As a result, the user observes a sharp drop in frames per second (FPS) in games and delays when switching between applications, often when using the navigator in the sun or during long gaming sessions.
To avoid this, try not to load Redmi or Poco with heavy tasks while charging, it is also recommended to remove the case if it interferes with cooling, temperature control is the key to a stable frame rate.
If overheating occurs at rest, it may indicate a background process that is eating up CPU resources.
Problems with updating MIUI and software
The MIUI shell is a powerful tool, but it requires resources to work, and after a major system update, many users notice a temporary slowdown, which is normal, because it takes time to re-index files and optimize databases.
Sometimes the cause of the lags is errors in the firmware itself or conflicts with installed applications. Developers regularly release patches that fix bugs. Ignoring updates can lead to a build-up of vulnerabilities and compatibility issues.
Check the relevance of the software version in the settings menu. If the problem appears immediately after the update, you should wait a couple of days of active use. In rare cases, a complete reset after the update helps.
What is optimization after updating?
Also worth mentioning is the beta of firmware, where installing a Developer ROM for new features often leads to instability, and for everyday use, it is better to choose stable update branches.
Background processes and heavy applications
Multitasking is good, but the uncontrolled number of applications running leads to the exhaustion of RAM. When there is no free memory left, the system has to constantly unload and reload background tasks, which puts a strain on the processor.
Geolocation applications, fitness trackers and heavy games are particularly resource-intensive; some programs may not work properly in the background, creating endless data processing cycles, causing the phone to stutter even on the desktop.
Use the menu of recent applications to close out unnecessary tasks, set up background activity limits for rarely used programs, and this will help save RAM for important processes.
| Type of application | Impact on RAM | Recommendation |
|---|---|---|
| Social media | High. | Limit background activity |
| Office packages | Low. | You can leave it in the background. |
| Navigators. | Average. | Close after use |
| Games | Critical | Closing up |
☑️ Background process verification
Visual Effects and Animations
MIUI is rich in visual decorations that are pleasing to the eye but require processing power. On mid- and low-end processor devices, complex transition animations can cause micro-latency, creating a sense of viscosity.
Turning off or speeding up animations is a proven way to make the system more visually responsive, and it won't add more hertz to the processor physically, but it will remove the expectation of finishing the visual effect before you start the action.
To change the settings, go to advanced settings. Find the section that controls the animation speed. Scaling from 1x to 0.5x or shutting down completely will give you a noticeable increase in the sense of speed.
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To access hidden animation settings, go to About Phone and click on MIUI Version 7 times to activate the developer menu.
Also worth considering is the use of static rather than live wallpaper: Dynamic images consume the resources of the graphics accelerator constantly, even when the screen is locked.
Methods of acceleration and optimization of the system
If previous steps have not completely eliminated the problem, more radical but effective methods can be used, and Hard Reset removes all the software debris accumulated over the years.
Before this procedure, make sure to back up important data. Once reset, the phone will work as new as it returns to the original state of the software environment, which often resolves deep system errors.
Another method is to use Safe Mode for diagnostics, and if the lags disappear in this mode, it means the problem is in a third-party app, and remove the newly installed programs one at a time to find the culprit.
⚠️ Warning: Before performing a full reset, make sure that the battery is at least 50% so that the device does not turn off in the process, which can damage system partitions.
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Comprehensive approach: cleaning memory + temperature control + disabling animations give a better result than the method used.
In extreme cases, when software methods are powerless, it is worth considering flashing the device to a global version or custom build if the phone model allows it, but this requires technical knowledge.