How to speed up Xiaomi Redmi Note 7 MIUI 12: From basic settings to hidden tweaks

Xiaomi Redmi Note 7 even 2026 The year remains a popular smartphone due to balanced characteristics: Snapdragon processor 660, 3/4 GB of RAM and AMOLED-But with the exit. MIUI 12 Many users have experienced interface slowdowns, multitasking hangovers and overheating, not only because of the sheath's heavyweight, but also because of accumulated digital debris, background processes and suboptimal default settings.

In this article, 10 proven ways to speed up a smartphone, from basic (cleaning the cache, turning off animations) to advanced (set up build.prop, limiting background processes). MIUI 12.0.2–12.5.8 (including global and Chinese versions) Important: some tweaks require unlocking the bootloader or root rights – we have marked them separately and warned about the risks.

If your smartphone is “slowing” after upgrading to MIUI 12, start with the first section (cleaning up the system). If the lags only appear in games or when shooting videos, go straight to optimization for gaming. For power users, at the end of the article, a list of hidden commands. ADB, Not documented in official Xiaomi guides.

1. Deep cleaning of the system: cache, debris and unnecessary files

The first step is to remove system debris that accumulates after installing applications, updates and using the browser. MIUI 12 Security app offers basic cleanup, but it skips up to 40% of temporary files, especially if you use instant messengers or streaming services.

How to clean your smartphone completely:

• 🧹 App cache: Go to Settings → Annexes → Manage apps, select each of the commonly used ones (e.g. Chrome, Facebook, Instagram) and click Clear cache. → Memory. → Cleaning (but it will only delete a portion of the files).
• 🗑️ Residual files: Install SD Maid (requires root) or Files by Google (no root) and scan folders /data/data and /sdcard/Android/obb For “dead” files from remote applications.
• 📂 Media Duplicates: In the Gallery MIUI There is a built-in tool for searching duplicate photos and videos (Albums) → Utilities. → Also check the folder. DCIM/.thumbnails — There could be gigabytes of miniatures.

Once cleaned, restart your smartphone. If your memory is less than 10%, consider moving apps to the next one. SD-The card (but remember, it will slow them down:

1. Insert a memory card (we recommend SanDisk) A1 Samsung EVO Plus).
2. Go to Settings. → Memory. → SD-map → Format as internal (Warning: map data will be erased!).
3. In the app menu, click Move to SD-Card (not available for all programs).

⚠️ Attention: Formatting SD-The card as internal memory will make it unreadable on other devices, and it can also cause accelerated wear of the flash memory due to frequent recordings.

2. Disable animation and visual effects MIUI 12

MIUI 12 is known for its beautiful yet resource-intensive animations: smooth transitions between screens, Control Center blur effects and dynamic wallpaper. On the Redmi Note 7 with 3-4 GB of RAM, this leads to delays in swipes and interface hangings. You can disable some of the effects without root, but for full optimization you will need development settings.

Ways to speed up the interface:

• ⚡ Reduce animation: Activate Settings → The phone. → Version. MIUI (Press 7 times until the notification "You became a developer" appears. → Additionally. → For developers. Find the items Window animation scale, transition animation scale and animator duration - set the value 0.5x or disconnect.

Turn off the Super Wallpaper wallpaper

15% CPU

Settings → Wallpaper

Simplify Control Center

MIUI 12

Settings → Notifications → Notification panel → Effects of blur

For Power Users: If You Have Root Rights, Edit the File /system/build.prop, line-in:

debug.egl.hw=1


debug.sf.hw=1




debug.composition.type=gpu




persist.sys.ui.hw=1

It will force the system to use it. GPU for rendering the interface, reducing the load on CPU. After the changes, restart the device.

Developer settings are activated|The scale of animation is set to 0.5x|Dynamic wallpaper disabled|The effects of blurring in Control Center are turned off|Reboot after changes-->

3. Limitation of autoboot and background processes

One of the main reasons for the brakes on MIUI 12 is uncontrolled autoloading of applications. Even after closing, many programs (e.g. Facebook, AliExpress, Mi Video) continue to work in the background, consuming RAM and battery power. As a result, after 2-3 days of using free memory, less than 500 MB remains, which leads to the forced closure of active tasks by the system.

How to limit background activity:

• 🚫 Disable Autostart: Go to Settings → Annexes → Application management. Select an application (e.g. TikTok) → Auto-start → Repeat for all unnecessary programs (especially social networks and instant messengers).

Limit background activity

Background activity

Limit

Prohibit push notifications

Settings → Notifications → Notifications Management

For radical optimization, use the Battery mode:

1. Go to Settings → Battery and Performance → Battery Mode.
2. Choose Charge Saving or Balanced (but not Performance!).
3. Activate Memory Cleanup when you lock it – this closes all background processes when you turn off the screen.

⚠️ Warning: Disabling AutoRun for Mi Cloud, Google Play Services, or Services & Feedback may result in sync errors or inability to update applications.

4. Optimization for Games: Overclocking GPU limitation FPS

Redmi Note 7 on Adreno 512 is capable of running PUBG Mobile, Call of Duty and Genshin Impact, but in the mid-sets, but after 20-30 minutes of play, friezes and drawdowns appear. FPS It's because of overheating and trottling of the processor, and you can solve this by setting up the Game Turbo and using hidden parameters. GPU.

Step-by-step:

• 🎮 Activate Game Turbo: Install Game Turbo from the Mi App Store (if not installed). Launch the game, swipe top-down and select the Game Turbo icon. Enable Performance Mode and Memory Cleanup.

Limit FPS

Game Turbo

Turn off the trottling

echo "1" > /sys/module/msm_thermal/core_control/enable

This command disables the frequency limit CPU Use with caution - overheating is possible!

For manual acceleration GPU (Only for experienced users):

1. Install Kernel Adiutor (requires root).
2. Go to section. GPU and zoom in on Max. GPU Frequency at 10-15% of the standard value (for example, from 650 MHz to 720 MHz).
3. Install. GPU Governor in Performance mode.

⚠️ Attention: Acceleration GPU And turning off the trottling shortens the life of the chipset (>1 hour) processor temperature may exceed 70°C, which results in automatic shutdown of the device.

5. Disabling unnecessary functions MIUI 12

MIUI 12 is overloaded with features that most users don't need but consume resources. For example, second space, mode for children, smart assistant Xiao AI Automatic memory optimization (which often works incorrectly) and shutting down these services will free up to 300-500 MB of RAM.

What can be safely disabled:

• 👤 Second space: Settings → Special facilities → Second space → Turn it off. ~1 GB of memory.
• 👶 Mode for children: Settings → Lock screen and password → Regime for children → Shut down.
• 🤖 Xiao AI: Settings → Annexes → Application management → Xiao AI → Disable. Also remove the widget from the main screen.
• 🔄 Auto-optimization of memory: settings → Battery and productivity → Optimizing memory → This feature often closes the desired applications.
• 📡 Mi Roaming (if not used): Settings → SIM-maps and mobile networks → Mi Roaming → Shut down.

For root users: Remove system applications that cannot be disabled by standard means.

com.miui.analogclock # Watch on the lock screen


com.miui.bugreport # Error Reports




com.miui.calculator # Calculator (can be replaced by Google Calculator)




com.miui.compass #Compass




com.miui.fm # FM-radio




com.miui.miservice #Mi Services (sends analytics)




com.miui.player #Music Player (replace by Poweramp)

Remove only those applications that are not system critical, for example, deleting com.android.phone or com.miui.home will cause your phone to fail!

💡

Before removing system applications, make a backup copy through TWRP Or Titanium Backup, which allows you to recover deleted files in case of an error.

Advanced methods: ADB, build.prop and kernel

If the basic methods didn't work, it's time for deep optimization, because these methods require an unlocked bootloader or root rights, but they give you maximum performance gains. We've collected the 5 most effective tweaks tested on the Redmi Note 7.

Method 1: Increase the limit of background processes:

By default. MIUI 12 limits background processes to 20 to 30, which leads to frequent app reboots. ADB:

adb shell settings put global bg_process_limit 50

Method 2. Disabling application signature verification (accelerates installation) APK):

adb shell settings put global package_verifier_enable 0

Method 3: Optimization of Dalvik VM (reduces RAM consumption):

Edit it. /system/build.prop, adding:

dalvik.vm.dex2oat-Xms=64m


dalvik.vm.dex2oat-Xmx=512m




dalvik.vm.stack-trace-dir=/data/anr

Method 4: Overclocking CPU (requires a custom core):

• Install the Perseus or FrancoKernel kernel through TWRP.
• Use Kernel Adiutor to increase the maximum frequency of large cores to 2.2 GHz (standard - 2.0 GHz).
• Install. CPU Governor in Performance or Ondemand mode.

Method 5: Optimization of the file system:

Transform. F2FS into ext4 (or vice versa) to increase the speed of reading/write:

1. Make a backup copy of the data.
2. In TWRP, select Wipe → Advanced Wipe → Data.
3. Change the file system to ext4 (if F2FS) vice versa.
4. Reboot and restore the data.

⚠️ Warning: Incorrect kernel or file system settings can lead to a device being knocked out (completely inoperable). MIUI forum XDA Developers.

💡

Dispersal CPU and GPU It's 15 to 25 percent more efficient, but it reduces battery life by 20 to 30 percent.

7. Alternative firmware: whether to switch from MIUI 12

If all the optimization methods didn’t work, consider installing custom firmware. The Redmi Note 7 works well:

• 📱 Pixel Experience (Pure Android) 12/13) — Minimalist interface, no unnecessary services Xiaomi.
• ⚡ LineageOS (Android 11/12) — stable, with good battery optimization.
• 🔧 Havoc-OS - flexible configuration, support overclocking.
• 🎯 MIUI EU (European version - same MIUI 12, but without Chinese software and with better optimization.

Advantages of custom firmware:

How to install custom firmware:

1. Unlock the bootloader through the Mi Unlock Tool (requires a binding Mi Account and wait 7-14 days).
2. Install. TWRP Redmi Note 7 (version 3.5.2 or later).
3. Download firmware (e.g. Pixel Experience) and GApps (if you need Google services).
4. In TWRP, run Wipe → Advanced Wipe (select Dalvik, Cache, System, Data).
5. Install firmware and GApps, then restart.

⚠️ Note: Installing custom firmware resets the warranty and may result in data loss, IR Blaster or Widevine L1 for Netflix HD) They may stop working.

8 Regular maintenance: how to maintain speed

Even after optimizing, the Redmi Note 7 will eventually start to slow down again. To avoid this, follow the monthly maintenance checklist:

• 📅 Once a week: Clear the app cache through Settings → Memory. Delete unused files from the Download folder.
• 📆 Once a month: Check the autoload of applications (Settings) → Annexes → Autorun. Update your firmware (if you use stock). MIUI). Defragment internal memory with the help of SD Maid (requires root).
• 📅 Once every 3 months: Reset your network settings (Settings) → SIM-map → Check the battery health through AccuBattery (if capacity has dropped below 80%, consider replacing it).

We also recommend:

• 🔋 Use original or certified RAM (poor charging speeds up battery degradation).
• 🌡️ Avoid overheating (do not play games when charging, do not leave your phone in the sun).
• 📴 Regularly reboot the device (every 2-3 days) to clean the RAM.

💡

If you notice that the smartphone began to warm stronger than usual, check the download CPU into AIDA64. If the cores are constantly running at 100% for no apparent reason, it could be a virus or a malfunction in the system application.

FAQ: Frequent questions about the Redmi Note 7 acceleration