How to speed up games on Xiaomi phone: from basic settings to hidden chips MIUI

Xiaomi smartphones are famous for their price-performance ratio, but even flagship models are slowly slowing down in games, for reasons ranging from processor overheating to background processes that devour resources. This article is not about the promises of “magic utilities”, but about specific technical solutions that actually work on devices with a wide range of different technologies. MIUI 12-14 and HyperOS.

We will analyze how software tricks (disabling animations, optimization) MIUI), and hardware nuances (cooling, acceleration) GPU). Particular attention will be paid to models with Snapdragon chips 7/8 The series and Dimensity, where the potential for acceleration is maximum. 12 Pro+ or POCO F5 Suddenly you’re in Genshin Impact or Call of Duty Mobile – here you’ll find a solution.

⚠️ Important: Some methods require unlocking the bootloader or root rights. This voids the warranty and can cause permanent damage to the system if you do not act correctly!

1. Optimization MIUI: hidden settings for gamers

MIUI And HyperOS has built-in tools to speed up games, but they're often hidden or disabled by default. Let's start with the safest one: activate performance mode and disable unnecessary background processes.

Go to Settings. → Special facilities → Developer Mode (if there is no item, tap 7 times on the Version) MIUI In the "About the Phone" section, turn it on here:

• 🔧 Debugging by USB (You will need to do more manipulation)
• ⚡ Do not turn off the screen while charging (relevant for long gaming sessions)
• 🎮 Fixed processor frequency (prohibits the MIUI reduce the clock frequency during the game)
• 🚫 Limit background processes (select "No background processes»)

Next, open the Settings → Battery and productivity → Performance mode and select "Games." In some firmware, this item is called "Accelerate." MIUI» — Add it to the list of exceptions.

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If after the performance mode is turned on, the phone warms up more, use a cooling stand or play at temperatures below 25.°C. Overheating over 45°C automatically reduces the performance of the chipset.

System Cleanup: What to Remove for Maximum FPS

Background apps, cache and junk files can eat up to 30 percent of RAM, which is critical for gaming.

Go to Settings. → Annexes → Manage applications and sort the list by Memory Use. Delete or disable:

• 🗑️ Applications with background activity (e.g. Mi Video, Mi Browser, if not used)
• 📱 Duplicate launchers (e.g, POCO Launcher on top of standard)
• 🎵 Auto-run music services (e.g. Mi Music)
• 📊 Social networks (it is better to open them in the browser while playing)

For deep cleaning, use the built-in tool MIUI:

1. Open Security. → Cleanup
2. Select “Deep Clean” and wait for analysis
3. Delete the app cache and residual files
4. Reboot the phone.

Shut down. Wi-Fi/mobile data for background applications|

Close all tabs in the browser|

Clean up RAM via the menu "Recently used»|

Enable the "Do Not Disturb" mode»-->

⚠️ Warning: Do not clear the cache of system applications (e.g. com.miui.home) – this can lead to interface failures. Also avoid the “optimizers” from the Play Market: most of them become the source of lags themselves.

3.Acceleration GPU and CPU: Risks and real results

Xiaomi models on Snapdragon chips 8 Gen 2/3 Dimensity 9000/9200 They have hidden overclocking potential, but that requires root rights or a custom core:

Method 1: Through the Engineering Menu (without root)

Enter the code in the phone application:

##4636##

Go to Battery Information and find Performance Limitation, if it's active, turn it off. This will remove the software limitation on the CPU clock.

Method 2: With a Custom Core (Advanced Only)

Install the FrancoKernel or Kiran Kernel kernel (available for most Xiaomi flagships).

• ⚙️ Customize frequency GPU (For example, increase from 840 MHz to 950 MHz on the Adreno 740)
• 🔥 Optimize power management (disable thermal throttling)
• 🎛️ Use performance profiles for specific games

⚠️ Warning: Overclocking reduces chipset life and increases power consumption. On the Snapdragon 8 Gen 1 overclocking can cause overheating of over 50°C and Auto Shutdown. Use only with a cooling system (e.g. Black Shark FunCooler Pro).

Snapdragon 8 series|Dimensity 9000/9200|Snapdragon 7 series|Snapdragon 6 series|Other-->

4.Cooling: How to Prevent Trottling

Thermal Throttling is the main cause of the fall FPS long game sessions, when the chipset temperature exceeds 45-50°C, the system is forced to reduce frequencies:

Passive cooling:

• ❄️ Use a cooling case (e.g. GameSir) X2 Pro with fan)
• 🧊 Stick the heat pad on the back cover (thickness 0.5-1 mm)
• 🌡️ Play in a room with a temperature below 25°C

Programmatic methods:

1. Install. CPU Monitor from Play Market to track temperature.
2. In the Engineering Menu (#4636##) turn off Temperature Limitation (risky!).
3. Use the Game Turbo (built-in) MIUI) manually limiting heating.

For models with Amonet (liquid cooling system, for example, Xiaomi 13 Ultra), you can improve the heat sink by replacing the thermopaste. However, this requires disassembling the device and voids the warranty.

5. Customizing graphics in games: Balance between quality and performance

Many games automatically choose the graphics settings based on the phone model, but not always optimally. +20–30 FPS without loss of visual quality.

Let’s take Call of Duty Mobile as an example:

• 🎨 Graphics quality: Set “Average” instead of “High” – the difference is minimal, and the increase is minimal FPS substantial.
• 🔄 Frame rate: Select “Maximum” (if supported) or “High».
• 🌿 Disable Shadows and Motion Blurring – They Eat Up to 15% of Resources GPU.
• 🔊 Sound: Install “Low Quality” – This Will Reduce CPU Load.

Genshin Impact Optimal Settings for Snapdragon 8 Gen 2:

⚠️ Note: In games with support for 120 Hz (for example, PUBG Mobile) force to enable a high screen refresh rate in the display settings (Settings) → Screen. → However, this will increase battery consumption by 20-30%.

6. Alternative firmware: should you switch to caste?

Stock-stock MIUI It's optimized for the mass user, but not for gamers. Alternative firmware (e.g. LineageOS, Pixel Experience) can deliver up to 15-20% performance gains at the expense of the user:

• 🧹 Remove unnecessary Xiaomi services (e.g. mipush, miui.analytics)
• ⚡ More aggressive management CPU/GPU
• 🔄 No restrictions on background processes

There are, however, downsides:

• 🚫 Loss of function MIUI (For example, Game Turbo, Second Space)
• 🔋 Possible battery problems (some customized for Xiaomi)
• 🛠️ Installation difficulty (requires unlocking the loader)

If you decide on a cast, choose firmware with support for "Gaming Mode", for example:

• Havoc-OS (optimized for gaming)
• CrDroid (flexible performance settings)
• ArrowOS (minimalistic, no unnecessary services)

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Castom firmware gives rise FPS, But they're not warranty-free, and they can cause problems with the camera or the sensors. TWRP!

7 Hardware upgrades: what can be improved physically

If software methods don't work, consider physical modifications that require repair skills, but have a noticeable effect:

1. Thermopaste replacement

On Xiaomi models 12T Pro, POCO F4 GT And others with active cooling over time, the thermopaste dries out. MX-6 Thermal Grizzly Kryonaut reduces temperature by 5-10°C.

Installation of an additional radiator

For Snapdragon 8 chipsets+ Gen 1 and later you can buy copper radiators (for example, Cooler Master Mobile Cooling Pad) and glue them to the back cover with heat glue.

Replacement of the battery

A worn-out battery (capacity below 80%) leads to trottling even at low temperatures. Check the condition through ##6484## (Battery Health menu).

⚠️ Note: Xiaomi's self-disassembly is more difficult than Samsung or Google's due to the screen's adhesive mounting. Use plastic blades and a dryer to soften the adhesive. Risk of plumes being damaged is 30-40% on the first experience.

8.Frequent mistakes that slow down games

Many users are slowing down their own performance without realizing it.

• 🔋 Playing while charging – activates a protective mode that limits the power of the chipset.
• 📶 Weak signal. Wi-Fi/4G — The phone spends resources searching for the network, which causes the lags.
• 🔊 Bluetooth enabled – some headsets (such as AirDots) create background load.
• 📁 Storage of games SD-card – reading speed is lower than that of the built-in memory.

Also avoid:

• 🌐 Uses VPN During the game (increases ping).
• 📱 Simultaneous screencasting (e.g., through Miracast).
• 🔄 Frequent change of screen orientation (MIUI Re-draw the interface, which eats up resources).

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Even the flagship Xiaomi 14 Pro will slow down if the game is installed on copper SD-card or Bluetooth headset with poor codec (for example, SBC ptX).

FAQ: Answers to popular questions