How to speed up Xiaomi Redmi Note 7: proven methods without data loss

Xiaomi Redmi Note 7, released in 2019, is still a popular budget smartphone due to balanced characteristics: Snapdragon 660 processor, 3/4 GB of RAM and battery 4000 mAh. However, over time, even this reliable device begins to “brake”: applications open for a long time, animation twitches, and the system hangs when multitasking. The reasons can be different – from overloaded memory to outdated firmware.

In this article, we’ll look at 12 effective ways to speed up the Redmi Note 7 without resorting to a radical factory reset. All methods are tested on current versions of MIUI 12-14 and do not require root rights. You’ll learn how to optimize the system, clean up the background processes and even slightly overclock the smartphone with hidden settings.

1. Performance Diagnosis: What exactly is inhibiting?

Before you start optimizing, it’s important to understand which component of the smartphone has become the bottleneck. The Redmi Note 7 can slow down for three main reasons:

• 🔋 Lack of RAM — MIUI aggressively kills background processes, but sometimes leaves “heavy” applications (such as games or instant messengers) hanging in memory.
• 🗃️ Full storage – if less than 10% of the total volume is free (for example, less than 4 GB on a 64 GB model), the system starts to run slower.
• 🔄 Older versions of the old version MIUI They may contain bugs that slow down, especially after app updates.

To check the current state:

1. Open Settings → About Phone → MIUI version and write down the current firmware.
2. Go to Settings → Memory and see how much space is free in the Internal Memory section.
3. Run Security → Optimization (brush icon) and see which apps consume the most resources.

If free memory is less than 1 GB, and games or social networks hang in the optimization list - the problem is precisely in the lack of RAM. If the smartphone slows down even after rebooting, the firmware or "garbage" in the system is to blame.

2. Cleaning cache and unnecessary files without root

One of the easiest ways to speed up the Redmi Note 7 is to remove the accumulated cache. MIUI actively caches application data, but over time this “junk” takes up gigabytes of memory and slows down.

Manual cleaning:

1. Go to Settings → Applications → Application Management.
2. Select an app (like Facebook or Instagram) and click Storage → Clear cache.
3. Repeat for all “heavy” applications (messengers, games, browsers).

Automatic cleaning:

• 🧹 Use the built-in security utility → Cleaning (a trash bin icon) removes temporary files, remnants of deleted applications and duplicates.
• 📱 Install. SD Maid (from Google Play) for deep cleaning – the program finds the cache that MIUI see.

Important: Do not clear the cache of system applications (e.g. com.android.systemui or com.miui.home) – this can cause MIUI to malfunction.

⚠️ Warning: If the app starts to work slower after cleaning the cache (for example, YouTube loads videos longer), this is normal - the cache helps to speed up reruns. After 1-2 uses, the speed will recover.

3. Optimization of animation and transitions to MIUI

Xiaomi Redmi Note 7 uses smooth transition animations between screens that look beautiful but slow down on weak hardware. They can be turned off or accelerated through developer mode.

How to turn on the developer mode:

1. Go to Settings. → The phone.
2. Click 7 times in a row on the MIUI version (you will be notified “You became a developer”).
3. Back to Settings → Additionally. → For developers.

Now, find the following parameters and change them:

After the changes are applied, the smartphone will respond to the presses instantly, but the transitions between the screens will become less smooth. If you do not like this effect, return the values to 0.75x - this is a trade-off between speed and beauty.

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If after disabling the animation, the screen began to “blink” when opening applications, return the window animation scale to 0.75x – this will fix the rendering bug in some versions of MIUI.

4. Disconnect background processes and autoboots

MIUI is known for aggressively closing off background processes, but some applications (especially Chinese ones) are able to bypass these limitations and continue to work in the background, eating up RAM and battery power.

Step 1. Limit the autoload:

1. Go to Settings → Applications → Application Management.
2. Select an app (such as AliExpress or TikTok) and click AutoRun.
3. Turn off the Autostart Switch.

Step 2. Limit your work to the background:

• 🔄 In the same application management menu, find the Battery item → Background Limitation and Select Limit.
• 📵 For particularly voracious apps (like Facebook), turn on Prohibit Mobile Data Use in the background.

Step 3: Use the "Background Process Lock":

MIUI 12+ has a hidden feature that forcibly closes all background processes when the screen is locked:

1. Enable the Developer Mode (see Section 3).
2. Go to For Developers → Block background processes.
3. Choose No Limits (for maximum performance) or Limit to 2 processes (for a balance between speed and convenience).

⚠️ Note: If you use messengers (WhatsApp, Telegram) and want to receive notifications on time, do not limit their performance in the background. → Battery → Optimizing the battery → All applications → No restrictions.

5. Updating the firmware and core of the system

Outdated firmware is one of the main reasons for the brakes. Xiaomi regularly releases updates for the Redmi Note 7, which optimize the processor and fix bugs.

How to update MIUI:

1. Go to Settings → About the phone → System update.
2. Click Check for updates.
3. If a new version is available, download and install it (preferably via Wi-Fi).

If automatic updates don’t find new firmware, try manually installing:

• 🌐 Download the latest stable firmware for Redmi Note 7 (codename lavender) from the official Xiaomi website.
• 📱 Move the file to the root of internal memory (not to folders!).
• 🔄 Go to Settings. → The phone. → Updating the system → Menu (three dots) → Select a firmware file.

Critical information: If your Redmi Note 7 runs MIUI 11 or older, upgrading to MIUI 14 can increase performance by 15-20% by optimizing the kernel and reducing background activity.

6. Transfer applications to a memory card (if supported)

The Redmi Note 7 as a base has only 32 or 64 GB of storage, and it gets clogged over time. If you have a microSD card installed, you can transfer some of the applications to it, freeing up internal storage.

How to move applications:

1. Insert a memory card (preferably a UHS-I U3 class for speed).
2. Go to Settings → Applications → Application Management.
3. Select an app (like Spotify or Netflix) and click Storage → Change → Memory Map.

Limitations:

• ❌ Not all apps support portability (especially system and games).
• ⚠️ After the transfer, the application may run slower if the memory card is slow (class) UHS-I U1 lower).
• 🔄 If you retrieve the map, the transferred applications will stop working.

An alternative way is to use the memory card as internal storage (Adoptable Storage in Android).

• 🔒 Encrypt the map and it will not be read on other devices.
• 📉 It can reduce performance if the card is slow.

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It is better to transfer only “heavy” applications to the memory card that are rarely used (for example, games or video editors).

7. reset partition cache (without data loss)

If all previous methods failed, try resetting the Wipe Cache Partition, which will delete temporary system files that may have damaged and caused the brakes.

Instructions:

1. Turn off your smartphone.
2. Press Power + Volume up at the same time and hold for 10 seconds until the Mi logo and Recovery menu appear.
3. Use volume buttons for navigation and power button for selection.
4. Choose Wipe & Reset → Wipe Cache.
5. Confirm the action and wait for the completion.
6. Choose Reboot. → Reboot to System.

After the reboot, the smartphone will work faster, especially if before that there were problems with freezing when starting applications or slow booting of the system.

⚠️ Note: Do not confuse Wipe Cache with Wipe Data! The second option (Factory Reset) will delete all your data, including photos and apps.

8.Alternative methods: disabling MIUI-chips and overclocking

If standard methods did not give a result, you can go further - disable unnecessary MIUI functions or even slightly "overclock" the processor.

What can be turned off to accelerate:

• 🎨 Themes and wallpaper MIUI: Go to Settings. → Wallpaper. → Static wallpaper and select a simple background. Animated wallpaper eats up to 5% of the processor.
• 🔍 Search by device: in Settings → Additionally. → Full-screen search turn off Show results on the home screen.
• 📡 Secondary Communication Functions: C Settings → SIM-Disable VoLTE and VoWiFi if not in use.

CPU overclocking (only for experienced users!)

With Kernel Adiutor (requires an unlocked bootloader and root), you can slightly increase the frequency of the Snapdragon 660:

• 🔧 Install Kernel Adiutor from Google Play.
• 📈 In the section CPU Increase the maximum core frequency to 2.2 GHz (by default - 2.0 GHz).
• ⚠️ Do not exceed 2.25 GHz – this can lead to overheating!

Without root rights, you can not overclock the processor, but you can optimize the task scheduler:

• In For Developers → Memory Configuration, set Process Limitation in the background of a Maximum 2 process.
• In the same menu, turn on the fixed size of the pile and set a value of 256 MB (this will reduce the load on RAM).

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Overclocking the processor without proper cooling can shorten battery life and lead to overheating. Use this method only if you are confident in your actions!

FAQ: Frequent questions about the Redmi Note 7 acceleration