How to Optimize Xiaomi Phone: A Complete Guide to Accelerating and Setup MIUI

Xiaomi’s MIUI-based smartphones are known for their rich functionality, but over time, even flagship models start to slow down. The reasons range from overloaded cache to suboptimal system settings. This article will help you figure out how to get your phone back to speed without drastic measures like factory resets or root rights.

We will look at both basic methods (cleaning up memory, disabling unnecessary services) and advanced tricks (setting up animation, optimizing the background MIUI). All instructions are relevant for Redmi, POCO and Xiaomi models on MIUI 12-14 and HyperOS. Particular attention will be paid to hidden MIUI functions, which the manufacturer does not advertise, but which can radically improve the user experience.

1. Diagnostics of the current state of the phone

Before you start optimizing, it’s important to understand what’s holding your Xiaomi back: the built-in MIUI tools allow you to conduct rapid diagnostics without third-party apps.

Open Settings → About the phone → Diagnostics of the system. Here you can see:

• 📊 Occupied space (categorized as systems, applications, media)
• 🔋 Battery condition (charge cycles, wear and tear)
• 🚀 Productivity (speed index) CPU/GPU)
• 🌡️ Temperature (overheating can be the cause of trottling)

Look at sections with red or orange indicators, which indicate critical issues, for example, if the memory section is more than 90% of the space, it's a direct clearing signal, and temperatures above 45°C in the plain indicate background activity of applications.

System cleanup: cache, debris and duplicates

The app cache is the main memory eater, and MIUI has a built-in tool to clean it, but it doesn't delete all temporary files. Here's how to do it manually:

1. Go to Settings → Applications → Application Management.
2. Sort the list by cache size (slip to three dots in the upper right corner).
3. Select applications with a cache > 500 MB (usually social networks, instant messengers, games).
4. Click Clear Cache for each (not to be confused with Clear Data – this will delete accounts!).

For deep cleaning, use Safe Cleaner (preinstalled in MIUI):

• 🧹 Garbage files: deletes the remnants of uninstalled programs, system logs.
• 📁 Duplicates: Finds repetitive photos/videos (especially relevant after switching from iPhone).
• 🔍 Deep scanning: Analyzes files > 50 MB that have not been opened in a long time.

Clear the cache top-5 «heavy-handed

Remove duplicate photos in Safe Cleaner

Check Downloads folder for old files

Disable auto-save media in messengers

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⚠️ Note: Do not clear the cache of system applications (com.android.systemui, com.miui.home) – this can cause shell malfunctions MIUI.

3. Optimization of autoloading and background activity

MIUI is known for aggressive back-end management, but even here, there's a lot to do, and the main problem is apps that are added to the startup and consume resources.

To disable autostart:

1. Go to Settings → Applications → Application Management → Autorun.
2. Turn off auto-run for all applications except system (e.g. Phone, Messages).
3. For particularly intrusive applications (such as AliExpress), also turn off notifications in the Notifications section.

Additionally, limit background activity:

• 🔄 B Settings → Battery → Battery mode select Energy Saving for unnecessary applications.
• 🚫 B Settings → Special opportunities → Application permissions turn off “Work in the background” for underutilized programs.

💡

If the application stopped sending notifications after disabling autorun, check the sync settings in the application itself. For example, in Telegram you need to turn on Background Connection manually.

4. Customization of animation and visual effects

MIUI is known for its beauty, but animations and transitions eat up the CPU resources, which will make the interface less smooth visually, but will significantly speed up the response of the system.

For this:

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 animation scale transition animation → Disable animation animation duration animator → Disable animation

For models on HyperOS (such as Xiaomi 14), the path is a bit different:

Settings → Screen → Movements and animations → Disable all sliders

These changes will apply immediately, check the speed of opening applications (for example, Camera or Gallery), the difference is especially noticeable on budget models (Redmi 10A, POCO M5).

5.Memory optimization: RAM and virtual memory

Lack of RAM is a common cause of slowdowns. MIUI has hidden settings that allow you to manage RAM and virtual memory (swap).

First, check the current state:

• Open the settings → About the phone → Memory.
• Pay attention to the RAM usage schedule. If <1GB is free, it's time to act.

Optimization methods:

1. RAM Extension: Go to Settings → Extended Memory → Select 3GB or 5GB (maximum model-dependent) Use a high-speed memory card (Class A2 or UHS-I).

Background clearing:

Settings → Applications → Cleaning RAM → Aggressive cleaning

Turn on the option “Clean when locking the screen”.

Disconnection of unnecessary services:

In Settings → Applications → System applications disable:

• 📡 Mi Video (if you don't use it)
• 🎵 Mi Music (replace by Mi Music) Spotify/Yandex Music)
• 📰 Mi Browser (use) Chrome/Firefox)

⚠️ Attention: Expansion RAM This is a memory card that increases the wear of the flash drive, and don't use this feature all the time, except when there's a critical RAM shortage (for example, for gaming).

6. Update of firmware and core

Often, the “brakes” are caused by outdated firmware or bugs in the current version of MIUI. Xiaomi regularly releases patches that fix performance issues.

How to update correctly:

• 🔄 Through OTA: Settings → Updating the system → Check for updates. Only download Wi-Fi -- files weigh. 2-4 GB.
• 📥 Manual: Download the firmware for your model from the official website. Rename the file to update.zip And put it in the root of the memory. → Update system press three points → «Select a firmware file».

After the update:

• 🧹 Clear the cache in Settings → Warehouse → Clean up.
• 🔄 Restart your phone (hold the power button for 10 seconds).
• 📊 Check the kernel version in Settings → The phone. → The current version must coincide with the date of the last update.