How to speed up the work of Xiaomi Redmi Note 8 Pro: from cleaning cache to deep optimization

Why the Redmi Note 8 Pro is slowing down and what to do about it

Even the powerful Xiaomi Redmi Note 8 Pro with a MediaTek Helio G90T processor and 6-8 GB of RAM slowly slows down. The reasons can be different from overloaded memory to outdated firmware. But in 90% of cases, the problem can be solved without going to the service center - it is enough to correctly optimize the system.

The main “culprits” of the slowdown:

• 📱 Clogged cache and junk files (especially after updates) MIUI)
• 🔄 Background processes that eat RAM (messengers, games, autoloading)
• 📉 Outdated firmware or incorrect updates
• 🔋 Worn-out battery (at a charge below 80% health, the system forcibly limits performance)

In this article, we've got the Redmi Note 8 Pro step-by-step acceleration instructions tested on MIUI 12-14, all of which are safe and do not require root rights unless otherwise stated, and we'll start with the simplest of methods and go to deep optimization.

1. Cleaning up cache and junk files

The fastest way to get back to the old shwing is to delete temporary files, and MIUI has built-in tools for that, but they don't always work 100 percent, so let's look at both.

Method 1: Integrated cleaning of MIUI

1. Go to Settings → Memory → Cleanup.
2. Click Analyze and wait for the scan to be completed.
3. Check all items (especially App Cache and Unnecessary APK Files) and click Clear.

Method 2: Manual cleaning through Recovery (if the phone brakes heavily even after standard cleaning):

1. Turn off your smartphone.
2. Press Volume Up + Power before the Mi logo appears.
3. From the Recovery menu, select Wipe & Reset → Wipe Cache (use volume buttons for navigation, power for confirmation).
4. Restart the device (Reboot) → Reboot to System).

Delete the cache of messengers (Telegram, WhatsApp)|Clearing Google Play Services Data|Remove the old ones APK-file|Scan the Downloads folder for garbage

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Warning! Don't confuse Wipe Cache (safe) with Wipe Data (full reset).

2. Optimization of autoboot and background processes

Many apps run automatically when you turn on your phone and work in the background, eating RAM. You can turn them off through MIUI settings or third-party utilities.

How to turn off autoboot:

1. Go to Settings → Applications → Application Management.
2. Slip on the three dots in the upper right corner and select AutoRun.
3. Turn off autoboot for unnecessary applications (especially games, social networks and instant messengers, except the main ones).

How to limit background activity:

• 🛑 For individual applications: Settings → Annexes → [Select the application] → Battery → Limit background activity.
• ⚡ For all applications: Enable Energy Saving Mode in Settings → Battery (but this may limit notifications).

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If after turning off the autoboot notifications from messengers stopped coming, add them to the list of exceptions in the battery settings.

Warning: ⚠️ Do not disable autoboot for system processes (e.g. com.miui.securitycenter or com.android.phone).This can cause phone malfunctions.

3. Update of firmware and core

An outdated version of the MIUI or kernel can be the cause of lags, and Xiaomi regularly releases patches to optimize performance, especially for models like the Redmi Note 8 Pro that came out in 2019.

How to update firmware:

1. Go to Settings → About the phone → System update.
2. Click Check Updates and install the latest version (preferably via Wi-Fi).
3. If the update does not come, download the full firmware package from the official MIUI Downloads website and install it manually through Settings → System Update → Three Dots → Select a firmware file.

How to check the kernel version:

1. Open Settings → About the phone → Version of the kernel.
2. Compare it to the latest stable version on forums (e.g. XDA Developers).
3. If the kernel is outdated, update the firmware or install the custom kernel (requires unlocking the bootloader).

4. Optimization of animation and visual effects

MIUI is known for its beautiful animations, but they can slow down weak devices. On the Redmi Note 8 Pro, it's not as critical, but turning off the extra effects will give you an increase in smoothness.

How to speed up animation:

1. Activate Developer Mode: Settings → About Phone → MIUI version (tap 7 times in a row).
2. Back to Settings → Additionally. → For developers.
3. Find the points: Window animation scale - set 0.5x or Off. Transition animation scale - set 0.5x Animator duration scale - set 0.5x

How to turn off unnecessary visual effects:

• 🎨 Turn off wallpaper animation in Settings → Wallpaper. → Dynamic wallpaper.
• 🌓 Switch to Dark Theme (Settings) → Screen. → Dark theme – it reduces the load on GPU.
• 🔍 Turn off blur effects in Settings → Special facilities → Delete animations.

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Disabling animations won’t speed up games or heavy apps, but it will make the MIUI interface noticeably more responsive when used on a daily basis.

5. Transfer applications to memory card and clean internal storage

If the internal memory of the Redmi Note 8 Pro is full, the system begins to slow down, the decision is to transfer some applications to the microSD (if supported) or clear unnecessary data.

How to transfer applications to a memory card:

1. Insert microSD (UHS-I U3 class is recommended for speed).
2. Go to Settings → Applications → Application Management.
3. Select the application → Warehouse → Move it to SD-map.

What can be safely removed:

• 📂 folder DCIM/.thumbnails — Photo miniatures are stored here (you can delete without consequences).
• 🎵 Cash of music applications (Spotify, Yandex Music) in Settings → Warehouse → Music.
• 📥 Download folder – check it for old ones APK, documents and archives.

⚠️ Attention, not all applications support portability SD-System utilities and games with protection (e.g, PUBG Mobile cannot be moved.

6. Reset to factory settings (last resort)

If nothing works, the last option is hard reset, which will bring the phone back out of the box by removing all data, apps and settings. On the Redmi Note 8 Pro, reset solves lag problems 85 percent of the time if they are caused by software failures rather than hardware problems.

How to reset:

1. Back up important data (photos, contacts, messages) through Settings → Additional → Backup and Reset.
2. Go to Settings → Additional → Recovery and Reset → Resetting.
3. Choose to erase all data and confirm the action.
4. After restarting, set your phone as new.

What to do after the discharge:

• 🔄 Don’t restore data from a backup right away – check how the clean phone works first.
• 📥 Install applications one at a time and monitor performance.
• 🔋 Charge the battery to 100% before first use.

7. Checking the battery and hardware problems

If the phone brakes even after all the manipulations, the problem may be in the hardware, most often to blame worn-out battery or overheating of the processor.

How to check the health of the battery:

1. Install the AccuBattery app from Google Play.
2. Charge the phone to 100% and discharge to 0% without connecting the charger.
3. Check out the battery health score in Charging. If it's below 80%, it's time to change the battery.

Signs of hardware problems:

• 🔥 The phone is very warm even in simple (check through the phone). AIDA64 processor temperature).
• 🛑 Lags only appear in certain applications (e.g., games or cameras).
• 🔋 The battery is discharged in 2-3 hours with minimal load.

⚠️ If the Redmi Note 8 Pro overheats above 60°C in simple, this may indicate:

• Failure of the battery (blown, wear).
• Problems with the heatpast on the processor (requires disassembly).
• Pollution of the charging connector (dust, oxidation).

In such cases, contact the service center.

FAQ: Frequent questions about the Redmi Note 8 Pro acceleration