How to speed up Xiaomi phone: proven methods for all versions MIUI

Your Xiaomi has started to slow down, apps take a long time to open and animation twitches? that doesn't always mean it's time to buy a new smartphone. 13/14 over time lose performance due to accumulated digital debris, background processes and suboptimal settings MIUI. V 80% In cases, the problem can be solved by software methods - without resetting to factory settings or replacing iron.

We tested it. 27 speed-up 12 Xiaomi models from Redmi Note 8 Pro 2019 year 14 Ultra 2026) And we only selected those that have a noticeable increase in productivity. MIUI 12/13/14/15, hidden features for power users and warnings about typical bugs that only make things worse, such as did you know that turning off Adaptive Brightness can increase battery life on the device? 15%, a the correct setting of the screen resolution reduces the load on the processor to 30%?

Important: the methods are suitable for all the lines - Poco, Redmi, Xiaomi and Black Shark, but the efficiency depends on the hardware platform. 8 Gen 2/3 The increase will be less noticeable than on Helio. G96 or Snapdragon 680. If your smartphone is older, 2018 year, pay special attention to the sections about lightweight firmware and disabling unnecessary services.

1.Diagnostics: Why Xiaomi is slowing down?

Before you can optimize, you need to understand the root of the problem. MIUI There are built-in diagnostic tools that show:

• 📊 CPU Occupation – Which Applications Are Loading CPU even in the background;
• 🗑️ Memory Use – How Much RAM Is Eating System Processes;
• 🔥 Overheating – if the temperature is above 45°C, triggers trottling (artificial slowing).

To start the diagnosis:

1. Open the Settings. → The phone.
2. Tap 5 times on the version MIUI — The menu will be expanded settings.
3. Select System Status → Performance monitor.

Typical causes of brakes according to the diagnosis:

⚠️ Warning: If the diagnosis shows a constant loading CPU 80%+ If you don't have active applications, it could indicate a virus or system file corruption, so you can go straight to the security section.

Fast cleaning: 5 minutes for noticeable acceleration

These methods don't require root rights or complex manipulations, but they have an immediate effect.

Clearing cache and debris

System cache and residual application files can take up to 5-7 GB of memory. MIUI There is a built-in tool to remove them:

1. Go to Settings. → Memory.
2. Click Clean (Trash tab).
3. Choose Deep Cleanup and confirm.

For more thorough cleaning, use SD Maid (Play Market) This app finds:

• 🗃️ Empty folders;
• 📁 Remnants of remote applications;
• 🔍 Duplicate files.

2.2. Cancel animations

The animations of the transitions between the screens are not only annoying, they also load the processor, and they can be accelerated or turned off completely:

1. Activate Developer Mode (7 taps by Build Number in About Phone).
2. Back to Settings → Additionally. → For developers.
3. Find the items: The scale of window animation → No animation; scale of transition animation → No animation; duration of animation → 0.5x.

Effect: Applications are opened to 20-30% It's faster, and the interface is more responsive, especially in models with a high-speed interface. 60 Hz screen (for example, Redmi Note) 11).

2.3 Resetting of graphic settings

MIUI It automatically adjusts the graphics settings to the games, but sometimes it resets them incorrectly to return the factory settings:

1. Open the Settings → Display → Screen resolution.
2. Choose Auto (if available) or the maximum native resolution for your model.
3. Go to Settings. → Battery → Performance mode and select Balanced.

⚠️ Attention: On some firmware (MIUI 12.5 and below) resetting graphical settings may result in a loss of screen color calibration. → Color mode.

3. Optimization of RAM (RAM)

Lack of RAM is the main reason for the brakes on budget Xiaomi (for example, Redmi) 9A s 2 GB of memory, even if you have 6-8 GB, incorrect settings can lead to constant reboot of applications. Here's how to fix it:

Background process settings

MIUI aggressively closes the background applications, but this can be controlled:

1. Activate Developer Mode (see Section 2.2).
2. Go to Settings. → Additionally. → For developers → Process limit.
3. Select: Standard limit for 4-6 GB RAM; without background processes - for 2-3 GB of RAM (saves charge, but applications will reboot); Maximum 4 process 8+ GB RAM.

For important apps (messengers, music) set exceptions:

1. Open Settings → Applications → Application Management.
2. Select the desired application → Battery → No restrictions.
3. Turn on Auto Start and Background Activity.

3.2. Use of the swap file (swap)

If you have root access, you can create a swap file that uses some of the internal memory as additional RAM. 2-4 GB memory.

For users without root, an alternative is the app RAM Expander (ROEHSOFT). It creates virtual memory through internal storage, but only runs on Snapdragon and MediaTek Helio processors (not supported by Dimensity).

Scheduled memory clearing

MIUI It can automatically clear the RAM at a certain time:

1. Go to Settings. → Battery → Cleaning up memory.
2. Turn on the Auto Clean option.
3. Set a schedule (recommended every day at 3:00).

💡

In the models with 6+ GB RAM autocleaning can do more harm than good - it resets the cache of commonly used applications. 1 time 2-3 day-day.

4. Release of internal memory

When the internal storage is filled with 90%+, The system starts to slow down due to fragmentation of files and lack of cache space. 15-20% free-space.

Transfer of annexes to SD-map

Not all apps support portability, but for those that support:

1. Put it in. SD-map (recommended) UHS-I Class 10 or higher).
2. Format it as internal memory in Settings → Memory.
3. Go to Settings → Applications → Application Management.
4. Select the application → Warehouse → Change. → SD-map.

Important: After formatting as internal memory SD-The card will be encrypted and will not be read on other devices.

4.2. Removal of embedded applications (without root)

MIUI It's full of pre-installed applications that can't be removed by standard methods, but they can be disabled:

1. Go to Settings → Applications → Application Management.
2. Slip three dots in the upper right corner. → Show all applications.
3. Choose the unneeded (e.g. Mi Video, Mi Music, Games).
4. Click Disable (Do not Remove Updates!).

To turn off:

1. Select the service from the list.
2. Press Stop (if the button is active).
3. Then press Turn it off.

Auto-start configuration

Many apps are launched when you turn on your phone and hang in the background to control auto-run:

1. Go to Settings → Applications → Application Management.
2. Select the application → Auto-start.
3. Turn off the resolution (except messengers and important utilities).

List of applications that can be safely blocked:

• 🛒 Marketplaces (AliExpress, Wildberries);
• 🎮 Games;
• 📰 News aggregators;
• 📊 Analytics services (e.g. Google Play Services) but don’t turn it off completely!).

5.3. Disabling advertising in MIUI

Advertising modules in MIUI They're not just annoying, they're also loading the system to shut them down:

1. Go to Settings → Memory → Cleanup.
2. Slap the icon. ⚙️ top-corner.
3. Turn off recommendations and get recommendations.

To remove advertising completely:

1. Open the Settings. → The phone. → Version. MIUI (Tap 7 times for the Developer Mode).
2. Come back to the extra. → For developers.
3. Find Disable Advertising MIUI and activate the switch.

💡

If the item "Stop advertising" MIUI" No, install the patch through Magisk (requires root: XDA Developers.

Temperature and cooling control

Overheating forces the processor to lower frequencies (trottling), leading to lags.Normal operating temperature for Xiaomi — 30-40°C. If the phone is heated higher 45°C. We need to take action.

Temperature check

Use the app. AIDA64 or CPU Monitoring:

• 🌡️ Processor temperature;
• 🔥 Battery temperature;
• ⚡ Kernel loading.

Critical values:

• 50°C+ — trottling;
• 60°C+ — Emergency shutdown (on some models);
• 45°C+ — Long-term operation in this mode reduces the battery life.

Software cooling methods

Reduce the load on the processor:

1. Turn off Adaptive Brightness in Settings → Display.
2. Set the static brightness at the level 50-60%.
3. B Settings → Battery → Select Energy Saving (Temporary Solution).
4. Close all background apps (especially games and cameras).

For gaming smartphones (Black Shark, Poco F):

• 🎮 Turn off the improved graphics in the game settings;
• 🔄 Reduce. FPS before 30-45 (instead 60/90/120);
• ❄️ Enable cooling mode in the notification curtain.

Physical cooling

If the phone is already overheated:

• ❄️ Remove the case (especially silicone);
• 📴 Turn off the charging;
• 🧊 Place the device on a metal surface (e.g., an aluminum radiator);
• 🚫 Do not use a refrigerator or ice – a sharp temperature drop is harmful to the battery.

For continuous use:

• 🛠️ Buy a cooling case with heat pipes (for example, Black Shark Cooling Backplate);
• 🌬️ Use a fan for your smartphone (connects to the USB-C).

⚠️ Warning: If the phone is hotter than 50°C in standby (no load), this may indicate a malfunction of the battery or thermal paste, in which case a diagnosis is required at the service center.

7.Security: Viruses and Malware

Malware and advertising Trojans are common causes of brakes.

• 🕵️ Stealing data in the background;
• 📤 Send. SMS pay-per-room;
• 🔥 Load the processor with cryptocurrency mining.

Verification for viruses

Use these apps to scan:

• 🛡️ Malwarebytes – Finds Advertising Software;
• 🔍 Dr.Web Light is effective against Russian-language viruses;
• 📋 VirusTotal – Upload suspicious content APK check out.

How to scan:

1. Install Malwarebytes.
2. Run a full scan.
3. Delete any threats you find.
4. Reboot the phone.

Removal of suspicious applications

Check the list of installed applications:

1. Go to Settings → Applications → Application Management.
2. Sort by installation date (Recently installed).
3. Uninstall unknown applications (especially those with names like System Update, Flash Player, Cleaner).

Signs of malware:

• 📱 Icon-free app;
• 🔄 It is self-activated after removal;
• 📡 Consumes traffic in the background;
• 🔋 Fast discharge of battery.

Blocking of advertising Trojans

If after removing viruses, there is an intrusive advertising:

1. Install Blokada (Ad Blocker Level) DNS).
2. Enable System Lock in the application settings.
3. Reboot the phone.

For root users:

• 🛠️ Install AdAway;
• 🔄 Update the hosts file;
• 📵 Add Advertising Network Domains to the Blacklist.

8 Radical methods: when nothing helps

If all of the above fails, there are extreme measures that take longer, but are guaranteed to bring the phone back to speed.

Reset to factory settings

This will delete all the data, but it will clean up the system.

Instructions:

1. Go to Settings → About the phone → Reset settings.
2. Choose to erase all data.
3. Confirm the action.
4. After restarting, set your phone as new.

Advantages:

• ✅ All viruses and debris are removed;
• ✅ Incorrect settings are reset;
• ✅ Factory productivity is being restored.

⚠️ Note: On some models (Redmi Note 9 Pro, Poco) X3) If you unlock it, you'll have to repeat the procedure.

Installation of custom firmware

For power users, the best way to speed up the old Xiaomi is to install a lightweight firmware.

Installation steps: