Why Xiaomi Redmi Note 8 Pro is slowing down: reasons and solution

Since the Redmi Note 8 Pro was released, it’s been a long time since the mid-range flagship has begun to struggle with today’s resource-intensive tasks: users often notice that the interface is delayed, apps open longer than usual, and games have jerks. It’s a natural aging process of electronics, but often the problem can be solved by software without having to buy a new device.

The main reason for the slowdown is that modern versions of the MIUI shell and current applications have become more demanding on CPU and RAM resources. The smartphone that flew five years ago is now forced to handle heavier code and graphics. Understanding the physical limitations of iron is the first step to optimizing.

In this article, we will discuss in detail all possible reasons why the Xiaomi Redmi Note 8 Pro starts to brake, and offer specific instructions for restoring performance.

Overflow of internal memory and cache

One of the most common reasons why the Redmi Note 8 Pro starts running slowly is the critical filling of internal storage. When the free space on the system partition drops below 10-15%, the Android operating system cannot efficiently use virtual memory and create temporary files for swaps. This leads to tangible micro-freezes when switching between windows.

Many users are unaware of the amount of space hidden data takes up. Messengers like Telegram and WhatsApp have been storing media files for years, creating gigabytes of garbage. System cache also grows over time, taking up precious resources.

⚠️ Note: Do not delete files from system folders manually through the file manager unless you are sure of their purpose. MIUI or loss of application data.

For effective cleaning, it is recommended to use built-in tools. Go to the application Security → Cleaning. However, for deep cleaning, you should use a storage analyzer.

• 📱 Check the Downloads folder - installations often accumulate there. APK-files and old documents.
• 🗑️ Clear the social media cache through app settings as they store terabytes of temporary images.
• 📸 Move photos and videos to a microSD card or cloud storage to free up internal memory.

Restrictions of RAM and background processes

The Redmi Note 8 Pro came in versions with 6GB and 8GB of RAM. For modern standards, even 8GB is the middle ground, and 6GB is not enough for comfortable multitasking. When physical memory is busy, the system begins to actively use the swap partition on the internal drive, which is much slower than real RAM.

MIUI is famous for its aggressive background management policies, but over time, the autorun list becomes overgrown with unnecessary services. Every application you run eats up some of the resources, even if you don't use it right now, and this is especially noticeable after a system update, when new services start working on top of the old settings.

To minimize the load, manually limit background activity. Go to Settings → Apps → All apps, select unnecessary programs and press Battery → Background work → No restrictions (for important ones) or disable auto-start for junk.

Also worth paying attention to the memory expansion function. In some versions of the firmware, the option "Memory Extension" is available, which takes part of the permanent storage into RAM.

• 🚀 Turn off auto-run for all apps you don’t use daily.
• 🔋 Use the “Energy Saving” mode in the background for heavy gaming and social networks.
• 🧹 Clean up running apps regularly through the multitasking menu.

Impact of MIUI version and system updates

Users often wonder if the Redmi Note 8 Pro should be upgraded to the latest available MIUI. On the one hand, updates contain security patches and optimizations, on the other hand, new versions of the shell are often heavier than previous ones and may not work properly on the aging MediaTek Helio G90T hardware.

If you notice that the phone is warming and slowing down after the update, there may have been a file indexing error or a conflict of system libraries, in which case you should reset to factory settings, a radical but often the only effective method.

The discharge process is as follows:

1. Go to Settings → About the phone → Reset settings.
2. Choose to erase all data.
3. Confirm the action with the unlock password.

⚠️ Warning: Before resetting, make sure you remember the password from your Mi Account and Google account.Otherwise, the device may lock after turning on.

Once the system is reinstalled, the phone often comes to life as years of error and configuration conflicts are removed, but even if the clean system is slow, the problem can go deeper.

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Resetting to factory settings is the most effective way to programmatically speed up an old smartphone, if the problem is not physical memory wear.

Temperature trottling and battery wear

The MediaTek Helio G90T processor in the Redmi Note 8 Pro is known for its high performance but also for its severe heat generation. When you work long hours or work in a hot room, the protective mechanism is trottling. The processor artificially lowers its frequencies to avoid burning, which leads to a sharp drop in FPS in games and lags in the interface.

Also, over time, the battery degrades. When the voltage under load drops below a critical threshold, the system can limit performance to prevent a sudden shutdown. An old battery is a common cause of unstable operation.

Use the built-in engineering test menu to diagnose the diagnosis, type ##6484## in the phone and select the temperature or battery option.

If the phone is warming up even in a simple one, it may be a problem with a heavy app or a malfunctioning power controller, in which case only a battery change or flashing will help.

Problems with specific applications and their optimization

Modern apps are becoming increasingly "blown up": The version of Instagram or Facebook that ran smoothly two years ago may today require the resources of an entire flagship.If the Xiaomi Redmi Note 8 Pro is slowing only in certain programs, the problem is localized.

It is recommended to use lightweight versions of applications (Lite), if available, they consume less RAM and less CPU load when rendering pages.

It is also worth checking whether the compulsory GPU-Acceleration or other experimental features in the developer menu that may conflict with drivers Mali-G76.

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Use the Google Go or Facebook Lite version of the app – they run much faster on older processors, saving both charge and memory.

• 📉 Remove and reinstall the problem app to reset its cache and database.
• 🚫 Turn off automatic app updates in the Play Market if the phone starts to brake during background download.
• 🔍 Check the permissions of applications: some programs can mine cryptocurrency or mine data in the background, loading the CPU.

Hardware malfunctions and storage wear

Internal memory such as eMMC or UFS has a limited resource of overwrite cycles. After 4-5 years of active use, the read and write speed can drop by many times, which directly affects the speed of loading the system and applications.

It's hard to diagnose this without special hardware, but the indirect sign is that the phone is slowing down even after a full reset and a minimum of apps are installed, and there may be sudden reboots or errors when saving files.

⚠️ Warning: If you notice artifacts on the screen, the stripes or phone turns off when you see them. 20-30% charge, the problem may not be in the software, but in the outgoing plume of the display or wear of the power controller.

In the case of hardware memory wear, software acceleration methods will only have a temporary and weak effect, and the only solution is to replace the memory module (which is not economically feasible) or change the device.

FAQ: Frequently Asked Questions