Smartphone owners Huawei often face a situation where a once-fast gadget suddenly starts working slowly. The interface slows down, applications open with a delay, and animations become choppy. This phenomenon is annoying because it reduces productivity and enjoyment of using the device. However, there is no need to panic, because in most cases the problem is solved using software methods without contacting a service center.
Slowdown of shell-based Android operating system Shell-based Android EMUI or HarmonyOS can be caused by many factors: from a banal lack of free memory to system process conflicts. Understanding the nature of the occurrence of “lags” is the first step to restoring the performance of your Huawei. In this article, we will analyze in detail the technical causes of failures and propose specific action algorithms to correct the situation.
Internal storage and cache memory full
The most common reason why the phone slows down, lies in the critical filling of the built-in memory. When free disk space approaches zero, the system has no place to create temporary files and data exchange buffers. This leads to the fact that the processor is forced to constantly clear old data before writing new ones, which creates noticeable delays in operation.
Particular attention should be paid to the folder Cachewhere applications store temporary data to speed up loading. Over time, this partition can grow to gigabytes, taking up valuable space. To solve the problem, you need to go to Settings → Memory and analyze the distribution of space. If the scale is filled to more than 90%, the device will be unstable.
Do not forget about junk files that remain after deleted apps or unsuccessful downloads. The system Huawei has a built-in Phone Manager tool that allows you to safely delete unnecessary data. However, manually checking your downloads and messenger folders (where duplicate photos and videos often accumulate) gives even better results.
- 🗑️ Delete unused applications that you have not used for more than a month.
- 📸 Transfer photos and videos to a memory card or cloud storage.
- 🧹 Clear your social network cache regularly through application settings.
⚠️ Attention: Do not delete files from Android system folders manually through the file manager if you are not sure of their purpose. This may lead to incorrect operation of the system or loss of data.
The influence of background processes and startup
Modern applications tend to run in the background even after you have closed them. Messengers, email clients and social networks constantly synchronize data, consuming resources random access memory (RAM) and processor time. On smartphones Huawei with a small amount of RAM, this quickly leads to the fact that the system does not have enough resources to process the user's current tasks.
The startup mechanism allows apps to start immediately after turning on the phone. If there are dozens of such apps, then loading the system is delayed, and the available memory is immediately occupied. You can manage this list through the developer menu or special battery settings. Disabling unnecessary services significantly lightens the load on the chipset.
It is also worth checking for “sleeping” processes that have frozen and are consuming energy incorrectly. In the task manager you can see which application is using the most CPU. Often the culprits are poorly optimized games or virus miners hidden in free software.
Use the “Launch applications” function in the battery settings to prevent selected apps from running in the background. This will save battery and speed up work.
For deep cleaning, you can use the command via USB debugging, but this requires skills. An easier way is to reboot the device, which forcibly terminates all hung processes and frees up RAM. Do this at least once a week.
Outdated software and firmware
Developers Huawei regularly release updates for their shell EMUI and system HarmonyOS. These updates often contain bug fixes, code optimizations, and security patches. If you have ignored update notifications for a long time, your system may not work efficiently due to known bugs that have already been fixed in new versions.
However, there is a flip side to the coin. Installing the latest firmware on old hardware sometimes leads to the opposite effect. New features require more resources, and if yours Huawei was released several years ago, it may not be able to handle the heavy shell. In this case, there is a drop FPS in the interface and long responses to clicks.
You can check for updates in the menu Settings → System and updates → Software update. It is recommended that you back up your data before installing a major version. If after the update the phone began to work worse, consider rolling back to the previous version or resetting the settings.
| EMUI version | Required amount of RAM | Features work | Recommendation |
|---|---|---|---|
| EMUI 9 / Android 9 | from 3 GB | Stable, lightweight | Leave for older models |
| EMUI 10 / Android 10 | from 4 GB | Improved animation | Optimal balance |
| EMUI 11 / 12 | from 6 GB | Many functions, heavy | Only for powerful devices |
| HarmonyOS 2.0+ | from 4 GB | High optimization | Recommended for installation |
What is EROFS?
The EROFS file system used in new Huawei firmware allows you to read data faster and save up to 2 GB of space, but requires support from the system kernel.
CPU overheating and throttling
Physical limitations play an important role in smartphone performance. When the processor temperature HiSilicon Kirin or Qualcomm Snapdragon reaches critical values, a protection mechanism - throttling - is triggered. The system artificially lowers the core clock speed to reduce heat dissipation. At this moment, the phone begins to openly “lag”, as its power drops significantly.
Overheating can occur not only during games, but also when using the navigator in the sun, long-term video shooting, or fast charging. Thick cases made of silicone or leather prevent heat dissipation, creating a “greenhouse” effect around the body. Remove the case if you feel that the back cover of the device is very hot.
Constant operation at high temperatures is harmful to the battery and motherboard. If the phone gets warm in idle mode, this may indicate a faulty power controller or a short circuit. In such cases, software optimization will not help; diagnostics will be required in the service.
⚠️ Attention: Never put a heated smartphone in the refrigerator or freezer. A sharp temperature change will cause condensation inside the case, which will lead to corrosion of contacts and breakdown.
Interface animation and visual effects
Beautiful transitions between screens and smooth menu opening require the computing resources of a graphics accelerator. On budget models Huawei these effects can create the illusion of slow system operation. Disabling or speeding up animations is a simple trick that will make your phone look faster.
To access these settings, you must activate Developer Mode. Go to Settings → About phone and quickly click 7 times on the item Build number. After this, a new section “For Developers” will appear in the menu. Find the items “Window animation”, “Transition animation” and “Animation duration”.
Change the animation scaling value from 1x to 0.5x or disable them completely. The interface will become sharper and more responsive. This will not increase the actual processor power, but will remove delays associated with rendering graphic elements.
☑️ Optimizing animation
Malware and low-quality applications
Installing apps from unreliable sources is a direct path to infecting your device. Malicious scripts can secretly mine cryptocurrency, display ads, or collect data, using up to 100% of CPU resources. Even legitimate apps from the store AppGallery or Google Play sometimes contain bugs that cause memory leaks.
Pay attention to applications that require suspiciously many permissions. For example, a flashlight that requests access to contacts and geolocation is most likely spyware. Remove such apps immediately. To check security, use the built-in antivirus or reliable solutions from third-party vendors.
Sometimes a conflict is caused by two applications trying to control the same system function (for example, two different launchers or memory cleaners). Try uninstalling the recently installed software and check if the problem goes away. A clean system always works more stable than an overloaded one.
⚠️ Attention: Avoid installing “RAM boosters” and “CPU coolers” from dubious sources. Most often, they themselves are the cause of the slowdowns, constantly working in the background and displaying intrusive advertising.
The most effective way to get rid of viruses and system junk, if other methods do not help, is a full reset to factory settings.
Physical wear and tear of the drive and battery
Do not forget about the physical aging of components. Flash memory type eMMC or UFS has a limited resource of rewrite cycles. After 3-4 years of active use, the speed of writing and reading data may drop significantly, which manifests itself in long launches of applications and saving files.
Battery degradation also affects performance. When the battery loses capacity and cannot supply the required current under load, the system forcibly reduces the processor frequency to avoid sudden shutdown. If your phone is more than 3 years old and the battery does not hold a charge well, replacing it can restore its previous speed.
In some cases, formatting the internal memory (if there is a backup copy) helps, which allows you to repartition the drive sectors and bypass damaged cells. However, this is an extreme measure, and it does not guarantee that the factory speed will be restored.
FAQ: Frequently Asked Questions
Will a factory reset help if the phone is old?
Yes, a reset will remove all accumulated garbage and registry errors, which will temporarily speed up the operation. However, physical memory wear and tear and processor aging will not go away, so the effect may be short-lived.
Why does Huawei slow down after updating to HarmonyOS?
Immediately after a major update, the system performs background file optimization and data indexing. This process can take from several hours to a couple of days. Let the phone work in quiet mode, and the speed will be restored.
Is it possible to overclock the processor on Huawei to eliminate lags?
Theoretically, yes, through superuser rights (Root) and special kernels, but this is extremely dangerous. You may void your warranty, cause overheating, and permanently damage your device. This is not recommended for regular users.
Does a full memory card affect the speed of the phone?
Yes, if applications are stored on the memory card or if the system is trying to index thousands of files on a slow SD card. This may slow down your file manager and gallery. Use cards of a high speed class (Class 10 / U3).
How to find out which application is loading the processor?
Go to Settings → Battery → Launching applications or use the “Battery Statistics” section. It will show which apps consume the most energy, which indirectly indicates a high load on the CPU.