How to speed up Xiaomi Redmi 8T: from cleaning cache to fine-tuning MIUI

Xiaomi Redmi 8T

It's not because of a weak processor.

Snapdragon 665

MIUI

In this article, 10 proven ways to speed up Redmi 8T, from basic (cache cleaning) to advanced (developer setup and disabling unnecessary Xiaomi services). All methods are tested on current versions of MIUI 14 and Android 11/12, but will also work for older firmware. No “magic” overclocking apps – only system tools and secure tweaks.

Important: If the phone starts to brake suddenly (for example, after a fall or moisture), the problem may be in the hardware, a worn-out battery or damaged memory, in which case only the service center will help.

1.Cache and garbage cleanup: the first step to speed

The most common cause of brakes is clogged apps and system debris. On the Redmi 8T with 64GB of memory, this is especially noticeable: free space runs out quickly and the system begins to "hang." Start with a basic cleaning:

Open Settings → Memory and click “Clear.” Here MIUI will show how much it takes:

• 📱 Application cache (temporary files that can be safely deleted)
• 🗑️ Garbage files (remainders of remote programs, logs)
• 📁 Downloads (old) APK, messenger photos)

If the Clear button doesn't help, use the built-in Security app (shield icon) that has an Optimization tool that closes the background processes and frees up RAM. Don't manually delete the cache for each application - this can cause crashes (for example, YouTube will be uploading videos longer).

⚠️ Note: Do not clear the cache for system applications like com.android.systemui or com.miui.home.

For deep cleaning, use the command in ADB (PC required):

adb shell pm trim-caches -d 1000000000

This command will force the cache of all applications except system ones. The size at the end (1,000,000 bytes = ~1 GB) can be increased if the memory is critically small.

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After cleaning the cache, restart the phone – this will help MIUI reassemble temporary files without errors.

2. disable unnecessary applications and services Xiaomi

Xiaomi is known for pre-installing dozens of its services on phones, from Mi Browser to Mi Video. Many of them work in the background, consuming RAM and battery power. On Redmi 8T, you can safely disable up to 15 system applications without losing functionality.

List of applications that can be deactivated (without root rights):

• 🌐 Mi Browser (com.android.browser) – if you use Chrome

How to turn it off:

1. Go to Settings → Applications → Application Management.
2. Select the app from the list above.
3. Click "Disable" (not "Delete"!).
4. Confirm the action.

For advanced users: ADB can remove these apps completely (but it's risky without a backup!)

adb shell pm uninstall --user 0 com.android.browser

⚠️ Warning: Do not disable com.miui.securitycenter or com.android.phone, this will result in loss of network or inability to call.

Remove unused games|Disable auto-start for messengers|Clear the cache of Google Play Services|Check background activity in Settings → Battery-->

3. Set up performance mode in MIUI

MIUI hides the useful optimization features in the developer menu to activate them:

1. Go to Settings. → The phone.
2. 7 times click on the MIUI version and the notification “You became a developer” will appear.
3. Back to Settings → Additionally. → For developers.

Now, include these parameters:

• 🚀 Background Process Limitation: Select “Maximum 2 Processes” (Saves RAM).
• ⚡ Windows/Switching Animation: Set the Value 0.5x Or shut it down completely.
• 🔄 Do not save actions: disable – this will speed up the return to previous applications.
• 📱 GPU-acceleration: Enable “Enforcement of use” GPU» (It can reduce battery life).

For Redmi 8T, it is especially useful to disable MIUI Optimization (which is in the same developer menu), a feature that often conflicts with user settings and artificially limits performance.

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Disabling animations gives the most noticeable visual effect – the interface will respond to touches instantly, but loses its “smoothness”.

4. Optimization of autoloading and background activity

Many apps (especially messengers and social networks) run when you turn on your phone and hang in the background, consuming resources. On Redmi 8T with 3/4 GB of RAM, this is critical. Limit autoboot to this:

Method 1: Through "Security"

1. Open the Security app (shield icon).
2. Go to Auto Launch Control.
3. Turn off auto-start for all applications except: 📞 Phone. 📩 Communications 🔔 Alarm clock

Method 2: Through Battery and Performance

1. Go to Settings → Battery and Performance → Battery Management.
2. Select an app (like Facebook) and set the Manual Mode limit.
3. Turn off "Autostart" and "Background Activity".

For Telegram, WhatsApp and other messengers, it is better to leave background activity, but limit synchronization. For example, on Telegram, turn off automatic downloading of media files (Settings → Data and memory).

⚠️ Warning: Disabling Autoplay for Google Play Services will lead to app update errors and push notification issues.

5. Updating firmware and kernel: when it helps

Redmi 8T slowdown may be due to outdated firmware or bugs in the Android kernel.

1. If you have an update, install it. For Redmi 8T, the current version for 2026 is MIUI 14 based on Android 12.

To install custom firmware you will need:

1. Unlock the bootloader through the official Xiaomi tool.
2. Install TWRP Recovery (Redmi version) 8T — twrp-3.7.0_9-0-willow.img).
3. Switch firmware and GApps (Google services) through TWRP.

After firmware custom core (e.g. FrancoKernel) Redmi 8T shows performance gains of up to 25% in benchmarks, but battery life can be reduced by 10-15%.

6 Hardware Methods: When Software Optimization Does Not Help

If the phone brakes even after all the settings, the problem may be in the “iron”:

• 🔋 Worn-out battery: with capacity below 70% Redmi 8T Artificially restricting productivity.
• 💾 Damaged flash memory: Bad blocks cause lags when reading/write.
• 🌡️ Overheating: at temperatures above 60°C processor trottlits (reduces frequency).

How to check:

1. Battery: Install AccuBattery and watch Battery Health. If the value is below 80%, replace the battery (the original costs ~ 1500 rubles).
2. Memory: Run the AIDA64 test (Storage section) and if the read speed is below 150MB/s, the flash memory is degraded.
3. Overheating: Use the Monitor CPU to monitor temperature. Normally for Snapdragon 665 - up to 50 ° C under load.

If the memory is a problem, try formatting your phone through TWRP (not a standard reset!) which will delete all data, but restore the file system. Importantly, before formatting, backup your phone via adb backup or Swift Backup.

⚠️ Warning: Don't use RAM cleaners like Clean Master. They don't speed up your phone, they just increase battery consumption by constantly scanning.

7.Alternative launchers and lightweight applications

The standard MIUI launcher (com.miui.home) consumes up to 300MB of RAM and often hangs over. Replace it with lighter alternatives:

• 🏠 Nova Launcher (Settings: Turn off animations, select Easy Mode»).
• ⚡ Lawnchair (based on Pixel Launcher, but without any services).
• 📱 Smart Launcher 6 (automatically sorts applications and saves RAM).

Also install lightweight versions of applications:

• 📷 Facebook Lite instead of Facebook (saving 100)+ MB RAM).
• 💬 Messenger Lite instead of the standard messenger.
• 🎵 Spotify Lite or VK Music instead of YouTube Music.

For the browser, use Bromite (without advertising and unnecessary processes) or Firefox Focus (private default mode).

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Replacing the launcher and applications with lighter versions gives an increase in free RAM up to 40% and reduces the processor’s heating during multitasking.

FAQ: Frequent questions about Redmi 8T acceleration