How to increase the performance of Xiaomi Redmi Note 8T: from cleaning to fine tuning

Xiaomi Redmi Note 8T is still a popular smartphone due to the balance of price and characteristics, but over time even it begins to “slow down”. The reason is not always weak hardware — often to blame for the memory, background processes or unoptimized settings MIUI. In this article, we will analyze the specific methods that actually work on this model, from basic to advanced, including little-known tricks with firmware and core.

It’s important to understand that the Redmi Note 8T is built on a Qualcomm Snapdragon 665 processor with 4GB of RAM (in most versions), and its performance is limited by hardware. However, the right settings can squeeze 20 to 30% more speed out of it, as confirmed by tests on the 4PDA and XDA Developers forums. We won’t recommend “magic overclocking apps” (they only harm), but focus on system mechanisms and proven methods.

1. Diagnosis of the current state: what exactly is inhibiting?

Before optimizing, you need to identify bottlenecks. On the Redmi Note 8T, the most common brakes are caused by:

• 📱 Overloaded memory: less than 1GB of free RAM or clogged storage (especially if leftovers) < 5GB).
• 🔄 Background processes: Auto-launching applications, synchronization and services Google/Mi.
• 🔋 Overheating or battery wear: When the battery is below 20%, the processor automatically reduces the frequency.
• 🛠️ Outdated software: versions MIUI 12.5+ may conflict with new applications.

To check the status of the system:

1. Open Settings → About Phone → MIUI version and remember the current firmware.
2. Go to Settings → Applications → Working and see how many processes are active.
3. Install the CPU Monitor (from Google Play) to track the processor’s real-time load.

Critical: If the Settings menu → Battery → Status says “Battery Health: Bad” (or below 80%), software optimization won’t help – you need to replace the battery, in which case even resetting to factory settings will give a temporary effect.

2. Cleaning the system: remove garbage and cache

The first step is to free up storage and memory. The Redmi Note 8T with MIUI has built-in tools, but they don't work well. Here's what you do:

Cleaning up cache and garbage:

• 🧹 Go to Settings. → Warehouse → Clean up and run the scan. Delete unnecessary files (especially App Remains and Cache of Mini-Programs»).
• 🗑️ Manually check the folders: /storage/emulated/0/Android/data/ and /storage/emulated/0/MIUI/ — Gigabytes of temporary files are often accumulated here.
• 📂 Use Files by Google (from Play Market) for deep cleaning – it finds duplicates and large unnecessary files.

Removal of unnecessary applications:

• 🚫 Uninstall Xiaomi pre-installed services that you don’t use: Mi Video, Mi Music, Mi Browser. --user 0 com.mi.videoplayer (a list of packages can be found at WEB) 4PDA).
• 🛑 Turn off auto-start for applications in Settings → Annexes → Autostart control.

⚠️ Warning: Do not remove system applications called com.android. or com.miui. this will lead to system failure. If you are not sure, use App Inspector (from Play Market) to check the security of the removal.

3. MIUI Optimization: Hidden Settings and Modes

MIUI has a lot of hidden features that you can turn on to speed up. On the Redmi Note 8T, you can:

Performance mode:

• ⚡ Activate Settings → Additionally. → Performance Mode (if there is no item, turn on Developer Mode and find Force) GPU Rendering).
• 🎮 For games: Enable Settings → Special facilities → Acceleration GPU (reboot required).

Cancel animations:

• 🐢 Enable Developer Mode (7 taps according to Version) MIUI on the telephone»).
• 🔧 Go to Settings. → Additionally. → For developers and install: Animation windows: 0.5x Animation of transitions: 0.5x Duration of the animator: 0.5x

Background optimization:

• 🖼️ Use static wallpaper instead of live (they eat up to 15% RAM).
• 🌙 Enable the Dark Theme (Settings) → Screen. → Dark subject – it reduces the load on GPU.

💡

If after changing the animations, the phone began to brake more, return the values to 1x - on some versions of MIUI this causes bugs with rendering.

4.Memory Management: How to Free RAM

On the Redmi Note 8T with 4 GB of RAM, it is critical to keep at least 1-1.5 GB free. Here’s how to achieve this:

Manual optimization:

• 🔄 Clean RAM regularly through Settings → Annexes → Working → Clear everything.
• 🚫 Stop background activity for unnecessary applications in Settings → Battery. → Selecting a power mode (select "Limit background activity»).

Use of Lite versions of applications:

• 📲 Replace heavy apps with lightweight ones: Facebook → Facebook Lite Messenger → Messenger Lite Chrome → Chrome Lite (or Brave)
• 🎵 For music, use YouTube Music instead of Spotify (the latter consumes up to 300MB of RAM).

Configure virtual memory (swap):

If you have root access, you can increase the swap file:

su


echo 1048576 > /proc/sys/vm/swappiness




reboot

This will allow you to use part of the internal memory as RAM, but will accelerate the wear of the drive.

💡

On the Redmi Note 8T with 4 GB of RAM, it is critical to keep at least 1-1.5 GB free. If less than 500 MB is free, the phone will begin to “kill” background processes, which will cause lags.

⚠️ Note: Do not use RAM boosters from the Play Market (such as Clean Master or the Play Store). DU They don't clean up memory more efficiently than the standard tools, but they load the system with background processes.

5. Update of firmware: official and custom options

Outdated firmware is one of the main reasons for brakes. On the Redmi Note 8T, current MIUI versions (12.5 and later) are optimized better than the old ones, but there are nuances:

Official update:

• 🔄 Check for updates in Settings → The phone. → Updating the system.
• 📥 If there are no updates, download the latest version for Redmi Note. 8T (codename willow) from Xiaomi and set through Settings → The phone. → Updating the system → Three points. → Select a firmware file.

Castom firmware:

For advanced users:

• 🛠️ LineageOS or Pixel Experience give a cleaner Android without unnecessary services Xiaomi.
• ⚙️ The installation requires an unlocked loader and TWRP. Instructions are on 4PDA (Redmi Note 8T).

6. Hardware tricks: acceleration and cooling

If the software methods didn't work, you can try hardware improvements, but be careful, if you do the wrong thing, you'll overheat or you'll fail.

CPU overclocking (root required):

• ⚡ Install Kernel Adiutor (from Play Market) and increase the maximum frequency of Snapdragon 665 cores to 2.2 GHz (Standard – 2.0 GHz).
• ❄️ Increase the thermal throttling to 70°C (so there's no trottling).

Cooling:

• 🧊 Use a cooling case or fan stand under intense loads (games, rendering).
• 🔧 Replace the heatpaste (if you're disassembling your phone) with the Redmi Note. 8T Arctic MX-4.

Disconnection of unnecessary kernels (extreme method):

If the phone is used only for calls and instant messengers, you can disable 2 cores out of 8:

su


echo 0 > /sys/devices/system/cpu/cpu4/online




echo 0 > /sys/devices/system/cpu/cpu5/online

This will reduce energy consumption but will impair performance in games.

⚠️ Attention: Overclocking shortens the life of the processor and battery. on the Redmi Note 8T battery-worn (< 80% health) this can lead to sudden shutdowns under load.

7. Alternative methods: if nothing helps

If after all the manipulations the phone still brakes, there are radical measures:

Reset to factory settings:

• 🔄 Make a data backup through Settings → System system → Backup.
• 📱 Perform a reset to Settings → System system → Resetting settings.
• 🔧 After reset, do not restore data from the backup – install only the desired applications manually.

Battery replacement:

• 🔋 If the battery is below 70%, replacing it can return the original performance (cost — ~1500–2000 ₽).
• 🛠️ Use the original Xiaomi battery BM47 (3,500 mAh).

Sale/replacement of the phone:

If the Redmi Note 8T is not up to speed, consider switching to a newer model:

• Xiaomi Redmi Note 11 (Snapdragon 680, 6 GB of RAM) – performance gain of ~40%.
• POCO X4 Pro (Snapdragon 695) is the best option for gaming.

💡

Resetting to factory settings is the most effective way to return the “stock” speed, but only helps if the problem is not in the hardware (a worn-out battery, overheating of the processor).

FAQ: Frequent questions about Redmi Note optimization 8T