Xiaomi smartphone is very lagging - what to do in 2026?

Your Xiaomi is slowing down, apps are opening for 5 seconds, and animations are twitching like a slideshow? This is a common problem faced by owners of the brand's devices, from the budget Redmi to the flagship Mi 13 Ultra. The reasons can be due to software failures and hardware limitations, but in 90% of cases, the situation can be fixed without going to the service center.

In this article, we will look at all possible causes of brakes, from overloaded memory to incorrect MIUI updates, and give step-by-step instructions for eliminating lags. Particular attention will be paid to models with Snapdragon 6xx/7xx and MediaTek Helio processors, which are most often affected by slowdowns. If your smartphone has become “thinking” longer than you, read on.

1.Diagnostics: Why Xiaomi started to slow down?

Before starting treatment, you need to make a diagnosis. Brakes on Xiaomi usually occur for 5 key reasons:

• 📱 Overloaded memory: less than 10% of the free space on the internal drive
• 🔄 Failures in MIUI: corrupted system files after updating
• 🦠 Viruses and Malware: Background Processes of Miners or Spyware
• 🔋 Battery wear: reduced performance due to degraded battery
• 🛠️ Hardware problems: processor overheating or faulty flash memory

The fastest way to identify a problem is to go to Settings → About Phone → System Status.

• 📊 Place taken under “Memory"
• 🔥 Processor temperature (normal up to 40)°C to the plain)
• 🔋 Battery status (if there is a paragraph "Battery Health")

Critical point: if you see a message in the System State section saying, "Performance is limited due to overheating," immediately stop using the device before cooling.

2. Cleaning the system: remove garbage and cache

Let’s start with the simplest and most effective method – cleaning temporary files. Even on new Xiaomi smartphones, up to 3-5 GB of unnecessary cache accumulates in a month of active use.

Cleaning instructions:

1. Open the Settings → Memory
2. Click "Clean" in the "Junk" section
3. Go to "Applications" → choose the "heavy" (usually messengers or social networks) → "Clear the cache"
4. For deep cleaning, use the built-in Security app (shield icon)

⚠️ Warning: Do not cache system applications like com.android.systemui or com.miui.home manually through the developer's settings. MIUI and the need for complete resetting.

3. MIUI Optimization: Disabling Unnecessary Functions

MIUI is known for its abundance of background processes and animations that steal resources, and even on top-end models like the Xiaomi 14, unnecessary visuals can cause slowdowns.

What can be safely disabled:

• 🎨 Interface animations: Settings → Special facilities → Remove animations.
• 📡 Auto-Update Apps: Play Market → Settings → Auto-update → Only through Wi-Fi.
• 🔍 Search by device: Settings → Search → Deactivate "Device search"
• 📊 Statistics collection: Settings → Memory. → Three points. → Settings → Disable "Use analysis"

For advanced users, there are hidden performance settings:

1. Activate Developer Mode (7 taps by build number in About Phone)
2. Go to Settings → Additional → For Developers
3. Install: Window animation = Off. Transition animation = Off. Background process limit = Max. 2 process

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If after disabling animations, the interface began to seem “sharp”, turn back only the animation of windows with a value of 0.5x – this will give a balance between smoothness and performance.

⚠️ Note: On some models (Redmi Note) 10, POCO X3) Disabling background processes can lead to problems with notifications in messengers. 3-4 processes.

4. firmware problems: update or rollback?

One of the most common reasons for the lag on Xiaomi is the failure of MIUI updates, especially for devices that have received an update to MIUI 14/15 based on Android 13/14. New versions are often optimized for flagship models and do not work well on budget smartphones.

How to check the relevance of the firmware:

1. Go to Settings → About the phone → System update
2. Compare your version with the latest stable builds on the official Xiaomi website
3. If your version is older than 2 months, you need an update.
4. Memory: Run the test with ##6484## (MTK) or ##4636## (Snapdragon "EMMC Life or Storage"

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If your Xiaomi is older than 3 years and has a CPU temperature above 50°C in plain, it will likely require a thermal paste replacement. This is a common problem with the Redmi Note 8/9 series.

⚠️ Note: On devices with Snapdragon processors 8xx (For example, Xiaomi Mi 10, Black Shark 3, overheating can be caused by trottling, an artificial restriction of performance, in which case only replacing the thermal interface in the service center will help.

Radical measures: dumping and flashing

If all previous methods fail, there are two radical options: hard reset or full flashing, which will bring the smartphone back to the factory state, but have their own nuances.

Hard reset (without loss of unlocking the bootloader):

1. Make a backup through Settings → Additional → Backup
2. Go to Settings → About the phone → Reset settings
3. Select "Erase all data"
4. Confirm the action (you will need to enter a pattern lock)

Average repair prices in official Xiaomi services (2026):

⚠️ Note: Unofficial services often offer “cheap” repairs using non-original parts. For Xiaomi, this is especially critical – non-original batteries may not support fast charging, and screens may have problems calibrating color.