Xiaomi MIUI-based smartphones are known for their price-performance ratio, but even flagship models eventually start to slow down. The reasons range from overloaded memory to suboptimal system settings. Fortunately, you can pump Xiaomi without buying a new device - it is enough to correctly configure the software and hardware.
This article is not about “magic” overclocking apps (most of them are dummy) but about proven methods that actually work. We’ll look at both basic tricks for beginners (clearing cache, turning off animations) and advanced techniques for advanced users (changing the CPU scheduler, setting up build.prop). All instructions are relevant for models from Redmi Note 10 to Xiaomi 14 Ultra on MIUI 14/15 and HyperOS.
Important: some methods require unlocking the bootloader or root rights, which cancels the warranty and can lead to a device "brick." All actions you perform at your own risk. If you are not sure, limit yourself to "safe" sections (1-4).
1. Cleaning the system: remove garbage and unnecessary processes
The first step to speed up is to free up memory and remove background junk, and MIUI is guilty of pre-installed applications (bloatar) and aggressive caching.
- 🧹 Cleaning the application cache: go to Settings → Annexes → App management, select any application and click "Clear Cache." For bulk cleaning, use Settings → Memory. → Cleaning (clean button at the bottom).
- 🗑️ Removal of unnecessary APK: Many system applications (Mi Video, Mi Music, GetApps) can be disabled. To do this, click on the app menu to "Disable" (do not delete!).
- 🔍 Search for Large Files: Use Built-in Memory Analysis in Settings → Files by Google Memory or App to Find Old Photos, Videos and Duplicates.
For deep cleaning, SD Maid (requires root) or CCleaner (no root, but less efficient) are suitable.
- /sdcard/DCIM/.thumbnails – photo miniatures (can be removed)
- /sdcard/Android/data – cache of games and applications (clean selectively!).
- /sdcard/MIUI/backup – backups of the system (if not required).
⚠️ Attention: Do not delete folders Android/obb — Also avoid cleaning Dalvik-cache without root: this can lead to a reboot cycle.
2. MIUI Optimization: Hidden Settings and Tweaks
MIUI hides a lot of useful features that you can activate without root.
- ⚡ Disable animation: turn on Developer Mode (7 taps according to Version) MIUI In Settings → About the phone, then go to Settings → Additionally. → For developers and install:
The scale of window animation: 0.5x
Transition animation scale: 0.5x
Duration of the animator: Disable- 🔄 Change the I/O scheduler: in the same developer menu, select I/O scheduler → cfq (for cfq) SSD-Better than the deadline).
- 📶 Limitation of background processes: c For developers → Process limit select “Maximum 2 Process” (saves battery, but can close applications).
For models with AMOLED-With screens (e.g. Xiaomi 13 Pro) turn on a dark theme and activate Settings → Display. → Always on screen (saves up to 15% charge) It is also useful to turn off Auto Brightness and set a fixed value at 60-70%.
| Setting up | The way is on the menu | The effect |
|---|---|---|
| Disconnect MIUI Optimization | For developers → MIUI Optimization | Reduces delays but can cause bugs |
| GPU-acceleration | For developers → Accelerate. GPU-rendering | Interface smoothness (+5-10 FPS) |
| 4x MSAA | For developers → Turn on 4x MSAA | Best graphics in games (battery discharge) |
| RAM background check | For developers → Memory check | Automatic cleaning of RAM |
⚠️ Attention: Disconnection MIUI Optimization can break navigation gestures and notifications. make a backup to Settings before changing → Additionally. → Backup.
Disable animation in the developer menu
Set a dark topic
Limit background processes to 2-3
Turn it on. GPU-acceleration
Clear the cache through Settings→Memory.-->
3. Overclocking and performance management
For advanced users with an unlocked bootloader, tools are available for overclocking the CPU/GPU and fine-tuning the cores.
- 🔥 Changing the CPU frequencies: Kernel Adiutor (requires root) can increase the maximum core frequency or turn on the performance governor. For example, for Snapdragon 8 Gen 2 in Xiaomi 13, safe acceleration is up to 3.3 GHz (normal 3.2 GHz).
- ⚙️ Thermal-engine settings: in /system/etc/thermal-engine.conf (Or through Magisk Module, you can edit the thresholds of trottling.
- 🎮 Game Turbo: In Settings → Special facilities → Game Turbo: Enable the mode and activate the “Performance” and “No Limits” options FPS».
Critical: acceleration 10-15% above the standard frequencies reduces the life of the chipset by 20-30%. For the Snapdragon 888 (for example, in Xiaomi 11T Pro), the safe limit is 2.9 GHz (normal 2.84 GHz), Exceeding leads to overheating and trottling.
Use AIDA64 or CPU Monitor to monitor temperature.
- Snapdragon 8 Gen 1/2: up to 45°C in plain play, up to 75°C in games.
- Dimensity 9000: up to 42°C in plain, up to 70°C in games.
- Snapdragon 778G (e.g. Redmi Note 11 Pro+): Up to 50°C in games.
What happens when you overheat?
4. Battery Optimization: How to Prolong Battery Life
The battery is a weak spot for Xiaomi, especially in budget models (Redmi 9A, Poco M3).
- 🔋 Calibration of the battery: once every 3 months, perform the cycle “discharge to 0% → charge up to 100% without interruption. Use the original power supply (e.g, 33W For the Redmi Note 12 Pro+).
- ⚡ Disabling fast charging: in Settings → Battery → Charging settings select “Standard Charging” (extends battery life by 30%).
- 🌙 Night Charging: Activate Optimized Charging in the Same Menu – Your Phone Will Charge Up to 80% at Night and Recharge By Morning.
For models with HyperOS (such as Xiaomi 14), Adaptive Charging is available, which analyzes your habits and adjusts the charging cycle.
- Background update of applications (Settings → Applications → Auto Update).
- Constant activity of Google Play Services (via Settings → Accounts → Google → Sync).
- Weather and news widgets on the home screen.
| Action. | Saving charge | Side effect |
|---|---|---|
| 5G shutdown (if not necessary) | 10–15% | Less Internet speed |
| Reduce screen auto-disconnection time to 15 seconds | 5–8% | Frequent screen switching on |
| Disconnect NFC and Bluetooth | 3–5% | No quick connection to devices |
| Switch to 60 Hz (instead of 120 Hz) | 20–25% | Less smooth scrolling |
💡
If your phone is running 10%+ per night, check your consumption in Settings → Battery → Battery Use. Common culprits include Facebook, Mi Fit and Google Play Services.
5. firmware and custom firmware: when to upgrade
Official MIUI updates are not always optimized, and custom firmware (like LineageOS, Pixel Experience) can be faster, but before you install them, consider:
- 🔄 Official Updates: Check them out in Settings → The phone. → Update system: New versions of HyperOS (for example, for Xiaomi) 13T) lag-fix.
- 🛠️ Custom recovery: to install unofficial firmware is required TWRP. Instructions: Unlock the bootloader through the Mi Unlock Tool. Install TWRP Fastboot Flash Recovery twrp.img. Firmware (such as ArrowOS and GApps.
Risks.
EU ROM
Popular firmware for Xiaomi:
- Xiaomi.eu – optimized MIUI without bloat (requires unlocking).
- Pixel Experience is a pure Android with Pixel features.
- LineageOS is stable, but without Xiaomi’s branded features.
⚠️ Attention: Global firmware ROM Chinese-style (CN ROM) Check the compatibility before installing the system. XDA Developers.
💡
Custom firmware gives a performance increase of 15-20%, but it is deprived of warranty and can break the camera or sensors.
6 Hardware upgrades: what can be improved physically
If software methods don't work, consider hardware modifications. Options for different budgets:
- 🔄 Battery replacement: after 2-3 years, capacity drops by 30-40%.The original battery for the Redmi Note 10 Pro costs ~1500 ₽, service-substitution — ~1000 ₽.
- 💾 MicroSD installation: for hybrid slot models (e.g. Poco) X3 Pro) take the map UHS-I Class 10 (Samsung EVO Plus).
- 🔧 Replacement of thermopaste: relevant for Snapdragon 865/888 (For example, Xiaomi Mi 11). Use Arctic. MX-4 Or the Thermal Grizzly Kryonaut.
- 📶 Antenna booster: for weak network signal (relevant to Redmi) 9C) You can install an external antenna through the adapter.
For self-replacement of the battery will need:
- Plastic mediator (so as not to damage the plumes).
- Screen suction cup (for example, in Redmi Note 11 the screen is glued).
- Multimeter for voltage testing (normal: 3.7-4.2V).
⚠️ Note: When replacing the battery in Xiaomi 12/13 Be sure to reconnect the battery plume after installing a new battery - otherwise the phone will not turn on!
How to check the wear of the battery?
7.Game Tweaks: How to squeeze the maximum FPS
For gamers on Xiaomi (especially the Poco F-series), performance in games is critical.
- 🎮 Game Turbo 5.0: In Settings → Special facilities → Game Turbo: Activate: Performance instead of Balance. No Limitations FPS» (for Genshin Impact, Call of Duty Mobile. "Disable notifications while playing.
- ⚙️ Setting up GPU: In Kernel Adiutor (root) set: Max frequency GPU: +10% of the regular (e.g. 840 MHz for Adreno 660 in Snapdragon 888). GPU: msm-adreno-tz.
- 🔥 Cooling: Use a Cooler Master or homemade cooler (e.g., Cooler Cooler, USB-fan 5V).
For specific games:
- PUBG Mobile: In the graphics settings, select “HDR + Ultra”, but turn off shadows and anti-aliasing.
- Genshin Impact: Set 30 FPS at 1080p (60 FPS heats the chipset).
- Fortnite: Activate Epic Mode with Active Cooling Only.
If the phone is not turned on, repeat the procedure with flash_all_lock.bat (lock up).