How to remove lags on Xiaomi: a complete guide to speeding up your smartphone

Your Xiaomi has started to slow down, apps are slow to open, and animations twitch? Lags on smartphones of this brand are a common problem that occurs even on flagship models like Xiaomi 13 Ultra or budget Redmi Note 12. The reasons can lie in both software failures of MIUI and hardware limitations. In this article, we will discuss all possible methods of eliminating freezes from basic to advanced, including hidden developer settings and iron optimization.

It's important to understand that not all lags are the same. Sometimes the phone slows down because of overloaded memory, sometimes because of background processes, and in the worst cases, it's a worn-out battery or a damaged firmware. We've put together a checklist of solutions that are sorted by efficiency so you can quickly find the right option. Let's start with the simplest ways that don't require technical knowledge, and gradually move on to deep optimization.

1. Diagnostics problem: why Xiaomi started to lag?

Before you start treatment, you need to make a diagnosis. Lags on Xiaomi are divided into three categories:

• 🔄 System freezes – slow operation of the interface MIUI, long reaction to touch, hanging when opening the menu.
• 📱 Applying brakes – specific programs (such as games or social networks) are slow and the rest of the system is functioning normally.
• 🔋 Hardware lags - associated with overheating, discharged battery or wear of iron (more often found on older models like Redmi) 4X or Mi A1).

To determine the source of the problem:

1. Start Settings → About Phone → The MIUI version and tap the Kernel item several times to activate the developer mode.
2. Return to Settings → Additional → For developers and enable Processor Statistics and USB Debugging.
3. Use the CPU Monitor or AIDA64 app to track CPU and memory loads during lag time.

If you download. CPU exceed 80% For normal tasks (scrolling tape, starting the camera), the problem is more software-based. If the processor is not loaded, but the interface is still slowing down, it is the graphics subsystem or memory that is to blame. eMMC/UFS. On older models (Redmi) 3S, Mi 5) Frequently there is a wear of flash memory, which leads to "micro-hangs" when reading / writing data.

Basic Optimization: 5 Steps for Instant Acceleration

Start with these steps – they take less than 10 minutes and 60% of the time solve the brake problem:

Cache cleanup:

Cluttered cache is the main reason for lags on Xiaomi. Go to Settings → Apps → App Management, select the “heaviest” app (like Facebook or TikTok) and click Clear Cache.

1. Open Security. → Cleanup.
2. Choose Deep Cleanup and wait for the process to be completed.
3. Reboot the phone.

Shutdown of autoboot:

Many apps are launched when you turn on your phone and hang in the background, consuming resources.

1. Go to Settings → Applications → Application Management → Autoboot.
2. Sort the list by the date of last use.
3. Turn off autoload for all programs you use less than 1 time per week.

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If the app gets worse after cleaning the cache, delete it and reinstall it. Often, updates accumulate cache errors that are not fixed by standard cleaning.

3. Hidden MIUI settings: how to speed up animation and response

MIUI hides a few parameters that directly affect the speed of the interface, so that you can activate them:

1. Enable the Developer Mode (as described in the first section).
2. Go to Settings → Additional → For developers.

Now change the following parameters:

Caution: Disabling animations can make the interface less visually smooth, but it will significantly speed up the response of the system. On weak models (for example, Redmi 7A), this gives a speed increase of up to 30%.

Another hidden trick is the forced use of the GPU to render the interface:

1. In the Developer Settings, find Forced Use of the GPU.
2. Turn on this option and restart the phone.

This is especially useful on devices with Snapdragon 6xx/7xx processors, where the Adreno graphics accelerator is often underloaded.

4.Memory optimization: how to free RAM and storage

Lack of RAM is one of the main reasons for the lags on Xiaomi. Even if you have 6-8 GB of RAM, MIUI aggressively reserves memory for the background processes. Here's how to fix it:

Hand-cleaning RAM:

• 📱 Press and hold the Home button (or swipe up and hold your finger for 1 second).
• 🧹 Slip on the icon Close everything (cross or basket).
• 🔄 For deep cleaning, use the combination: Settings → Annexes → Clear the memory.

Limitation of background processes:

In the Developer Settings, find the background process limit parameter and set:

• 📱 Max Max. 2 process - for devices with 2-4 GB of RAM (Redmi) 9A, POCO M3).
• 📱 Max Max. 3 process 6-8 GB of RAM (Xiaomi) 11T, POCO F4).
• 📱 Standard limit for flagships with 12+ GB RAM.

Storage optimization:

If the space is less than 10 percent of the total, the system starts to brake.

1. Go to Settings. → Warehouse.
2. Click Clean next to the categories Cash, Downloads, Garbage.
3. Remove duplicate photos/video with the built-in Cleanup → Duplicates tool.

5. Advanced methods: reset, firmware and core

If the basics didn't work, it's time to move to radical measures, which require caution, but often resolve even the most neglected cases of brakes.

Reset to factory settings:

This is a last resort, but it eliminates 90 percent of the software lag.

The process itself:

1. Go to Settings → About the phone → Reset settings.
2. Select Delete all data.
3. Confirm the action and wait for the reboot (it will take 5-10 minutes).

⚠️ Note: On some models (Redmi Note 8 Pro, Mi) 9T) post-discharge IMEI. To restore it, you will need an engineering menu (#4636##) or firmware via the Mi Flash Tool.

Fastboot flashing:

If the reset didn't help, the firmware might have been damaged.

1. Download the official firmware for your model from the Xiaomi Firmware website.
2. Unpack the archive and launch the Mi Flash Tool.
3. Connect your phone in Fastboot mode (clip Power + Volume down when the device is off).
4. Select Clean All mode and start the firmware.

Installation of the custom core:

For advanced users, cores like FrancoKernel or Perseus optimize CPU and memory, but this requires:

• 🔓 Unlocked bootloader (bootloader).
• 📱 Established TWRP or another custom Recovery.
• 🛠️ Knowledge of working with ADB and Fastboot.

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Flashing and installing custom cores void warranty and can lead to a device blink, and use these methods only if you have exhausted all other options.

6. Hardware causes of lags: battery, overheating, iron

If the software methods fail, the problem may be in the hardware.

Battery wear:

On models older than 2 years (Redmi Note 5, Mi 8), the worn-out battery leads to trottling, a forced performance decline.

1. Install the AccuBattery app.
2. Check out the battery health setting.
3. If the value is below 80%, the battery needs to be replaced.

Processor overheating:

Lags above 60°C are the normal protection of the system, to lower the temperature:

• 🧊 Remove the case (especially silicone).
• 🔄 Clean the dust charger connector (use a wooden toothpick).
• 📉 Turn off Fast Charging in Battery Settings.
• 🎮 In games, activate the Performance Mode (it limits the game). FPS, but reduces heat).

Problems with flash memory:

Budget models (Redmi 6A, POCO C31) often use slow eMMC 5.1 memory, which degrades over time. Check the read/write speed with AndroBench:

• 📊 Reading speed below 150 MB/s – a sign of wear and tear.
• 📉 Write speed below 50 MB / s - critical wear, memory module replacement is required.

⚠️ Note: If your Xiaomi suddenly starts to brake after a drop or moisture, the problem may be in the detachment of memory chips or processor.

7. Optimization for Specific Xiaomi Models

Some models have unique performance issues, and here are the solutions for the most popular devices:

The POCO F3 and Xiaomi 11T Pro with the Snapdragon 870/888 processor are characterized by lags due to throttling when heated.

1. Install Thermal Engine from Magisk.
2. Turn off 5G (if you don't use it).
3. Activate Performance Mode in Battery Settings.

FAQ: Frequent questions about lags on Xiaomi