How to Speed Up Xiaomi Phone on Android: A Complete 2026 Guide

Xiaomi smartphones based on MIUI And they're starting to slow down over time, even on powerful Snapdragon or Dimensity chipsets, because of the accumulated digital debris, background processes and suboptimal system settings. In 90% of cases, productivity can be returned to (or even surpassed) factory level without root rights and complex manipulation.

This article is not just a collection of tips, but a systematic approach to speed up Xiaomi, based on the analysis of system logs, Geekbench tests and user feedback. We will analyze both software methods (cleaning cache, disabling animations) and hidden functions. MIUI, And we're going to focus on the Redmi Note 12, POCO X5 Xiaomi 13T — The owners of the site often complain about the lag after the updates.

1.Diagnostics: Why Xiaomi is slowing down?

Before optimizing, you need to identify bottlenecks. Brakes on Xiaomi are divided into 3 categories:

• 🔋 Hardware: battery wear (at a discharge below 20%, the processor is artificially limited), chipset overheating or flash memory malfunction (especially on budget Redmis with eMMC 5.1 memory).
• 🤖 Software: overloaded MIUI (The shell layer above Android, Google Services background processes or viruses in third-party APK.
• 📱 User: 100 installed+ Telegram cache weighs 5 GB, or 20 games are sitting in autoload.

To determine your case:

1. Run Settings. → The phone. → Version. MIUI and tap 5 times on the line "Core" - the menu will open CIT (Xiaomi internal test. select Single Test → Performance.
2. Install. CPU Throttling Test from Google Play – App to Show if System Overheating or Battery Discharge Limits.
3. Check your memory health with #4636## → "Battery information" → "Memory usage. If Available is less than 30 percent of the total, it's time to clean up.

⚠️ Attention: If in CIT Storage Health shows "Degraded" -- that's a critical wear and tear on flash memory. Software optimization won't help, you need to repair or replace your phone.

System Cleanup: Removing Digital Garbage

The first step is to free up memory and delete temporary files, which Xiaomi does not only through standard tools, but also with hidden commands.

Deep cleaning of the cache

Standard cleaning through Settings → Apps only remove part of the trash:

• 🧹 Enter ##4636### in the dialer and select Storage" → "Clear the Dalvik cache.This is secure and does not delete user data.
• 🗑️ For Android 12 models+: Go to Settings. → Memory. → Cleaning up memory → Deep Clean and select "Clear System Cache".
• 📁 Delete the folder. /sdcard/Android/obb — Here are stored caches of games (weigh up to) 10 The games will be rebooted the next time they start.

2.2. Removal of duplicates and unnecessary files

Use the built-in MIUI Cleaner appendix (broom icon):

1. Open the cleaner. → "Deep cleaning" → "Duplicate files".
2. In the "Big Files" section, sort by size and delete unnecessary videos./APK.
3. Go to “Residual Files” – here are the remnants of remote applications.

For advanced users: connect your phone to your PC and through ADB execute:

adb shell pm trim-caches -f 100

This will forcefully clear the cache of all applications, including system ones.

3. MIUI Optimization: Hidden Performance Settings

MIUI It has hidden parameters that affect the speed of work, and changing them does not require root rights, but acts immediately at the system level.

3.1. Disabling animations

The transition animations look beautiful, but they're slowed down by weak processors.

1. Activate Developer Mode: Settings → About Phone → MIUI version (tap 7 times).
2. Back to Settings → Additionally. → For developers.
3. Find the items: Window animation scale → Disable the animation scale of the transition → Disable the animation duration of animation → Disable

Configuring the task scheduler

MIUI aggressively kills background processes, but sometimes it interferes with the work of messengers:

• 🔄 B Settings → Annexes → App Management select AutoRun and disable it for unnecessary apps (like games).
• 🛡️ B Settings → Battery and productivity → Battery management set for messengers (WhatsApp, Telegram) mode "Without restrictions".
• ⚡ In For Developers, activate Do not limit background processes (only for models with 6).+ GB RAM!).

Switching to high-performance mode

On Snapdragon phones. 8 Gen 1/2 (Xiaomi 12/13 Series) Hidden mode "Productivity" is available":

1. Go to Settings → Battery and Performance → Performance Modes.
2. Select High Performance (a warning will appear about increased power consumption).
3. For models POCO F4/F5: Activate Game Turbo in the settings and add to the list not only games, but also heavy applications (for example, Chrome or CapCut).

⚠️ Attention: On the Redmi Note 11/12 Snapdragon-powered 680/685 Including high-performance mode can cause overheating, and use it only when the cooler is connected or in a cool room.

4. Application Management: What can be safely removed

MIUI It's filled with pre-installed applications (bloatware) that can't be removed by standard methods, but they can be disabled or removed through a computer. ADB.

List of safe applications for removal

These system applications are not critical to the phone:

For removal via ADB:

1. Connect your phone to your PC and do:
2. adb shell pm uninstall -k --user 0 com.miui.videoplayer (replace the package with the desired one).

4.2 Freezing of unnecessary services

If you are afraid to delete, freeze the applications through:

• 🧊 App Freezer (requires Xposed or Magisk).
• ❄️ Built-in function: Settings → Annexes → Select the application → Limit background activity.

💡

Before removing system applications, create a restore point in TWRP Or make a backup through adb backup -apk -shared -all -f backup.ab.

5.Memory Optimization: Why 8GB of RAM is Lagging?

Even with 12GB of RAM, Xiaomi can slow down due to inefficient memory management.The problem is settings MIUI and Google's background processes.

5.1. Setting up the swap file

On models with Android 11+ You can increase virtual memory:

1. Activate Developer Mode (see Section 3.1).
2. Go to For Developers → Virtual memory.
3. Set a size of 2-4 GB (optimally for 6-8 GB of RAM).

Restriction of background processes

By default. MIUI It allows you to work in the background of up to 20 processes. The optimal value is 4-6:

• In For Developers, find Background Process Limitation.
• Select a Maximum 4 process (for 6–8 GB of RAM) or 5 processes (for 12 GB)+).

💡

On the Redmi Note 12 Pro+ With 8 GB of RAM, limiting background processes to 4 pieces increases the time without recharging by 15-20%, but can lead to a reboot of messengers with multitasking.

5.3.Disable Heavy App Monitoring

MIUI 14+ It has a function to monitor heavy applications, which consumes resources itself:

1. Go to Settings → Applications → Special Access → Battery Optimization.
2. Select All Apps → Find out about Heavy App Monitoring → Shut down.

6. Updating firmware: when it helps and when it hurts

Updates MIUI Often, they bring not only new features, but also bugs. MIUI 14.0.5 Many users POCO F4 They complained about the lags when scrolling:

6.1 Selection of stable version

Before updating, check the reviews on the forums (4PDA, XDA):

• 📌 Stable versions are designated as V14.0.x.x (where x is the digit).
• 🚫 Avoid Beta or Developer versions if you are not ready for bugs.
• 🔍 To check the current version: Settings → The phone. → Version. MIUI.

Clean firmware installation

If after the update there are lags, make a clean installation:

1. Download the full firmware package (Fastboot) ROM) official website.
2. Go to Fastboot (click Volume Down) + Power with the phone turned off).
3. Connect to your PC and execute: fastboot flash all [file name].tgz

⚠️ Warning: Clean installation deletes all data, including photos in internal memory.Pre-backup via Mi Cloud or Google One.

Recoil on the previous version

If the new firmware slows down, you can go back to the old:

• 🔙 Download the correct version of Recovery ROM Xiaomi Firmware Updater.
• 📱 Rename the file to update.zip And put it in the root of the memory.
• 🔄 Go to Settings. → The phone. → Updating the system → press three points → "Select the update file".

7. Radical methods: for advanced users

If standard methods don't work, there are radical methods: they take longer, but they maximize productivity.

Unlocking the loader and installing custom firmware

Firmware like Pixel Experience or LineageOS are not "heavier" MIUI:

• 🔓 Unlock the bootloader via Mi Unlock Tool (you need a Mi Account and wait 7 days).
• 📥 Install. TWRP Recovery for your model.
• 🖥️ Please use the custom firmware (instructions for XDA).

7.2. Disconnection MIUI Optimization

A hidden function that artificially limits performance:

1. Activate. ADB Adb shell settings put global settings miui_optimization_disabled 1
2. Reboot the phone.

Transfer of annexes to SD-map (correctly!)

On Xiaomi with Android 10+ portability SD It's a curve, but there's a workaround:

• 📁 Format. SD-Card as Internal Memory (Settings) → Warehouse → SD-map → Set up as an internal).
• 🔄 Use it. App2SD or Link2SD forced transfer.
• ⚠️ Do not transfer system applications and messengers!

8 Hardware Methods: When Software Does Not Help

If the phone is slowing down even after all the optimizations, the problem may be in the hardware:

• 🔋 Battery: When worn out >50% (checked at AccuBattery) processor limited. Solution - battery replacement (cost for Redmi Note 10 — ~1500–2000 ₽).
• 🔥 Overheating: If the phone is heated above 45°C (check in) AIDA64), Clean the dust from the charging connector and the vents. POCO X3 Pro, they're on top).
• 💾 Memory: On models with eMMC 5.1 (Redmi 9A, Redmi 8) And the speed of reading and writing decreases over time. UFS 2.1/2.2 (ration).

⚠️ Attention: On Xiaomi 11T Pro and newer, when replacing the battery with an informal service center, a charging lock can be triggered. Use only the original batteries with a Xiaomi chip.

FAQ: Frequent questions about Xiaomi acceleration