Why Xiaomi phone is dumbing down: causes and solution of lags

The situation where once-quick Xiaomi starts to hang treacherously is familiar to many users: you click on the app icon and the screen freezes for a second, or typing turns into a chaotic wait for the system to respond, which is annoying, especially if the device was bought relatively recently and was expected to work lightning fast.

The problem of low performance in smartphones of the brand Redmi and POCO often lies not in the physical wear of hardware, but in software conflicts or overflow of system partitions. Modern shells MIUI and HyperOS require significant resources for the background work of services, which on budget models can cause significant delays.

In this article, we will discuss in detail why your gadget is slowing down, how to properly clean your memory and what hidden settings will help you return to your previous speed.

Overflow of built-in memory and cache files

The most common, but most common, reason Xiaomi's phone starts to run slowly is because it's filling up the internal storage critically. 10-15% From the total volume, the system becomes unable to place temporary files for swap, which leads to strong interface lags.

Devices with memory capacity are particularly affected. 32 or 64 GB: Messengers like Telegram and WhatsApp tend to grow to giant sizes, storing every photo and video you see in cache. DCIM/Camera, Because the high-resolution filming 4K They eat up the available space quickly.

For quick diagnosis, go to Settings → Memory and assess the situation. If the scale is more than 85% occupied, urgent action is needed. The system begins to work in stress mode, constantly trying to make room, which causes "freezes".

💡

Use the built-in Security → Cleanup app to remove junk files, but don’t rely on it entirely – it often leaves heavy messaging files behind.

This stage should not be ignored, since overcrowded memory affects not only the speed, but also the life of the drive. Constantly overwriting data in the face of space shortage accelerates the wear of the memory cell.

Background processes and MIUI optimization

MIUI is famous for its aggressive work with background applications, but sometimes it works against the user. A lot of running processes that you can't even see consume RAM and CPU time, especially for models with 3-4 GB of RAM.

There's a memory extension mechanism in the system that takes a piece of permanent storage and uses it as virtual RAM, and while that sounds useful, in practice, using a slow flash drive instead of a fast RAM often reverses the effect of the phone becoming even more blunt.

• 📉 Turn off the memory extension feature in your settings if you have less than 6GB of physical RAM.
• 🛑 Check the Auto Start section and prevent the launch of unnecessary applications.
• 🔍 Remove or freeze system applications that you do not use (Bloatware).

You also have to pay attention to animations. In the Advanced Settings menu → For developers, you can scale down the scale of window animations. It won't speed up the processor, but it will make the interface more responsive visually.

Problems with updates and Android versions

Often, users notice that the phone starts to slow down as soon as the system update, a phenomenon known as post-update lag. Once a new version of Android or MIUI is installed, the system performs file indexing and application optimization, which can take anywhere from hours to days.

However, if the problem persists for longer than a week, it is possible that the new firmware contains optimization errors for your particular model. In such cases, developers usually release patches, but sometimes only a complete reset helps.

It's important to understand the difference between stable and beta firmware. On Webly, bugs and lags are normal because they're designed to be tested. Stable versions shouldn't have such problems.

⚠️ Warning: If the phone warms up and discharges quickly after the upgrade, try resetting the settings to factory.

Check for available updates in Settings → About Phone. Sometimes the current version has known performance bugs that are fixed in the more recent release.

Processor overheating and trottling

Modern Snapdragon and Helio processors have a heat-resistant mechanism called trottling, and when the temperature reaches a critical point, the system forces the processor to lower its clock speed to avoid damage, at which point the phone starts to brake terribly.

The causes of overheating can be external (hot weather, sun use, thick cover) or internal (poor thermal paste, battery wear, background mining). If you notice that lags appear in games or navigation, it is likely because of the temperature.

You can use monitoring utilities to control the temperature, but often it's enough to just remove the case and let the device cool down.

Table: Typical symptoms and solutions

This table will help you quickly navigate the nature of the problem, but if none of the items fit, it may be a hardware malfunction.

Hidden Settings and Developer Options

For advanced users, there are a number of hidden settings that can dramatically change the behavior of the system. You can activate the developer menu by quickly clicking 7 times on the MIUI version number in the About Phone section.

Within the Developer Menu, we're interested in a few key things: First, limiting background processes, and once you set a limit, you're going to stop the system from storing any extra applications. Second, turning off the backend. HW-Acceleration in some cases helps with older models.

• 🚀 Turn on the "Acceleration" option. GPU" (If available for your model).
• 🔒 Set the limit of background processes on "No more" 2-3 processes".
• 🎨 Change the scale of animation to 0.5x visually accelerated.

Be careful when changing the settings in this section. Incorrect values can lead to unstable system operation or reboots.

Hardware causes and wear of the drive

You can't discount the physical wear and tear. Smartphone flash memory has a limited resource of write/rewrite cycles. After 3-4 years of active operation, the speed of reading and writing can drop significantly, making using the phone impossible even for simple tasks.

And it can also be a degradation of the battery, because if the battery can't deliver the current it needs under load, the processor can reset the frequencies without overheating, and it's a protective mechanism to prevent a sudden shutdown.

If software methods don't work, and the phone has been around for years, it may be time to consider replacing the device. Modern applications are becoming more demanding, and the old hardware just can't handle the new encryption and graphics processing algorithms.

⚠️ Note: Use of non-original chargers may damage the power controller, which also manifests itself in the form of unstable operation and system lags.

In conclusion, it is worth noting that regular reboot of the device (at least once a week) helps to clear the RAM from “junk” and update system processes, preventing the accumulation of errors.

💡

Comprehensive approach: The combination of memory cleaning, animations switching off and temperature control gives a better result than any action.

Frequently Asked Questions (FAQ)