How to speed up the work of the Xiaomi Redmi 8 smartphone: from simple settings to deep optimization

Why Xiaomi Redmi 8 is starting to slow down and how to fix it

Even the reliable Redmi 8 with its Snapdragon 439 and 3/4 GB of RAM processor is slowing down over time, and the reasons are not only because of the “aging” of iron, but also because of the accumulation of digital garbage: app cache, fragmented files, background processes and outdated software. If your smartphone becomes slower to respond to touch, longer to open applications or suddenly reboot, this is a signal to action.

In this article, we’ll look at 12 proven methods to help bring the Redmi 8 back to its original speed, start with simple customizations that don’t require technical knowledge, and go to deep optimization for power users. Importantly, some ways may require data resets — save important files in advance to the Mi Cloud or to your computer.

Before you start settings, check the system load. Go to Settings → About Phone → System Status. If the Memory section is less than 1 GB free and the Processor is constantly over 70% loaded, your smartphone critically needs cleaning.

1. Cleaning cache and junk files

The most common cause of brakes is crowded cache. Apps save temporary files for fast work, but over time they take up gigabytes of memory. On Redmi 8 with its modest 32/64 GB storage, this is especially critical.

How to clear the cache:

• 📱 Manual Cleaning: Go to Settings → Annexes → App management. Select the most "heavy" application (e.g. Facebook or TikTok) → Warehouse → Clear the cache.
• 🧹 Auto Cleanup: Use the built-in Security app (shield icon). Run garbage cleanup and delete unnecessary files (especially note the section "Residual files").
• 🔍 Deep cleaning: Install SD Google Play’s Maid – It’ll Find Hidden Cache Files That Standard Tools Skip.

Important for Redmi 8: after cleaning the cache, restart the smartphone - this will allow the system to reassemble temporary files without loading on the processor.

2. Optimization of autoboot and background processes

Redmi 8 on MIUI is known for aggressive background work, and many apps (especially social networks and instant messengers) run automatically when you turn on your phone and consume resources.

How to turn off autoboot:

1. Go to Settings → Applications → Application Management.
2. Select an application (for example, VKontakte) → Autorun → disable the slider.
3. For mass shutdown, use Settings → Battery and Performance → Autostart Management.

Also limit background activity:

• 🔋 B Settings → Battery and productivity → Select the battery mode set Energy saving.
• 🛑 In the same section, turn off Adaptive Charging – it constantly monitors the battery status, consuming resources.

💡

If notifications from messengers stopped coming after shutting down the autoboot, add them to the exceptions in the Settings → Notifications → Priority Notifications section

3. Update MIUI to the latest version

Slowdowns are often associated with outdated firmware. Xiaomi regularly releases updates that optimize performance for older models. MIUI 12.5, for example, added Ultra-Economic Mode, which suspends unnecessary processes.

How to update Redmi 8:

1. Connect to stable Wi-Fi (update weighs 1.5-2 GB).
2. Go to Settings → About the phone → System update.
3. Click Check Updates and wait for the download.
4. Close all applications before installation and connect the charger (the battery must be at least 50% charged).

* Redmi 8 doesn't officially get MIUI 14, but you can install custom firmware (like LineageOS) to extend support.

4. Transfer applications to a memory card

Redmi 8 in the basic configuration has only 32 GB of memory, of which the user is available ~24 GB. At this volume, the system quickly clogs, which leads to brakes. The solution is to transfer some applications to microSD (cards up to 512 GB are supported).

How to move applications:

1. Insert a memory card (UHS-I U1 or higher is recommended).
2. Go to Settings → Applications → Application Management.
3. Select an app (e.g. Google Maps) → Storage → Change → Memory Map.

Limitations of the method:

• ⚠️ Not all applications support portability (especially system and high-demand games).
• ⚠️ On the memory card, applications can run slower (depending on the class). SD).
• ⚠️ Widgets of ported applications will stop working.

💡

Transferring to an SD card won’t solve the brake problem if the reason is a lack of RAM (RAM), in which case only cleaning the background or resetting to factory settings will help.

5. Disable animations and visual effects

MIUI is known for beautiful animations, but on the weak Redmi 8, they only slow down the system. Turning off the extra effects can speed up work by 15-20%.

How to remove animations:

1. Activate Developer Mode: Go to Settings → About Phone and click on MIUI Version 7 times.
2. Go back to the Settings → Additional → Developer settings.
3. Find sections: Window animation scale → Set Off. Size of transition animation → Set Off. Animation Duration → Set 0.5x

Also, turn off unnecessary visual effects:

• 🎨 B Settings → Display. → Lock screen style choose a static picture instead of live wallpaper.
• 🌓 Turn off Automatic Theme Change in Settings → Display. → Dark subject matter.
• 🔄 B Settings → Special facilities → Remove animations activate the option (if available).

6. Reset to factory settings (hard reset)

If all previous methods fail, it's a complete reset, and it's a radical but most effective way to get the Redmi 8 back to factory speed, and it deletes all the data, so first, you can do this.

• 📁 Make a backup copy through Settings → Additionally. → Backup and reset → Local backup.
• ☁️ Sync contacts and photos with Mi Cloud or Google Account.
• 🔐 Write down logins / passwords from important services (they will disappear!).

How to reset:

1. Go to Settings → Additional → Backup and Reset.
2. Select Resetting → Erase all data.
3. Confirm the action and wait for the reboot (it will take 5-10 minutes).

⚠️ Warning: After the first 24 hours of reset, the smartphone will be lapped, the system indexes files and optimizes work!

💡

After reset, don't restore data from the backup immediately - check the speed of the clean system first. If there are no brakes, install the applications one at a time, watching the performance.

Alternative acceleration methods

If the standard methods did not help, try the advanced techniques:

• 🔧 Change I/O scheduler: In Developer Settings, find I/O Planner and select cfq or deadline instead of standard bfq. This will speed up reading/write files.
• 🔄 Process Limitation: In the same developer settings, set the Background Process Limit to a Maximum 2 of the process.
• 🛠️ Castomic core: For power users, installing a FrancoKernel or ElementalX kernel can improve performance on the market. 20-30%. Demands. TWRP and unlocked loader.

Alternative launchers should also be considered:

• Nova Launcher is lightweight and customizable.
• Lawnchair is optimized for weak devices.
• Microsoft Launcher is minimalist with good integration with Windows.

⚠️ Warning: Installing custom cores or firmware will void warranty and may result in a brick device!

FAQ: Frequent questions about Redmi 8 acceleration