Xiaomi’s high performance: what it is and how to activate it

Many Xiaomi, Redmi and POCO smartphone owners, when they look at the settings or the About Phone menu, often come across a cryptic phrase that promises maximum speed. It's not just a marketing slogan, but a set of software algorithms that MIUI and the new HyperOS use to manage CPU resources. Understanding how the system distributes power allows the user to squeeze the maximum out of the device, especially in demanding games or when multitasking.

Unlike many competitors, the Chinese giant has aggressive methods of caching and prioritizing background processes. Xiaomi not only increases clock speed, but redistributes data flows between the cores of the chipset. This means that the system decides which application right now needs more power and which can be strangled to save charge.

In this article, we’ll take a closer look at what’s behind terms like “memory extension” and “Game Turbo,” and look at hidden settings that often go unnoticed. You’ll learn how to properly customize your gadget for your tasks, whether it’s mobile eSports or hard work with graphics. The main secret is not the number of gigabytes of RAM, but the competent management of thermal mode and the frequency of sensor sampling.

High Performance Mode: How it Works Inside the System

When you activate the high-power mode, the operating system changes the work of the Linux kernel task scheduler. Instead of the standard balance between energy saving and speed, the system moves to a mode where interface response and computation are prioritized. The processor and GPU are less likely to reset frequencies to minimum values, which ensures smooth animations even under load.

But you have to understand that this kind of thing has consequences, and that's especially true for heat sinks. Snapdragon and Dimensity are very efficient, but when you run at high frequencies, you start trottling, which is a forced slowdown to protect you from overheating, so you limit your operating time to the limit.

For ordinary users, it is important to know that the “high performance” in the battery settings menu is not the same as the game mode. The first option affects the background processes and overall responsiveness of the system, while the second one is sharpened for rendering graphics.

⚠️ Warning: Constant activation of maximum performance mode can lead to accelerated battery wear and noticeable heating of the case during everyday use in call or read mode.

Let’s look at the main parameters that change when activating the strengthened mode:

  • 🚀 CPU Frequency: Minimum frequency threshold rises, preventing sharp drawdowns FPS.
  • ⚡ Interface animations: The speed of rendering windows and transitions increases, creating a sense of instant reaction.
  • 📡 Network activity: Priority is given to background traffic of an active application, which is useful for online gaming.
📊 How important is the maximum speed of the smartphone for you?
It's critically important for games.
I work with heavy applications.
I'm more interested in battery life.
I don't notice the speed difference.

Game Turbo and Game Optimization: Hidden Opportunities

The centerpiece of the gamer ecosystem is Game Turbo, which is not just a launcher for games, but a complex optimization module that redistributes resources in real time. When you run an application from a game list, the system blocks unnecessary notifications, clears RAM and reserves computing power exclusively for gameplay.

Inside the Game Turbo menu, you can use advanced settings that not everyone knows about, such as manually adjusting sensor sensitivity and touch response, which is a critical parameter for shooters to respond faster than opponents, and audio enhancement, which amplifies low frequencies to help hear enemy footsteps.

The ability to add any application to the list of games deserves special attention, which allows you to run heavy social networks or work tools in a high priority mode, the system will consider them important tasks and will not unload from memory even when resources are scarce.

Settings → Special features → Game Turbo → Settings → Add games

The table below shows the difference between the regular mode and the Game Turbo mode:

ParameterRegular regimeGame Turbo
Priority of the CPUBalanceMaximum
Cleaning up memoryAutomatic.Aggressive.
Network delayStandard.Reduced.
Screen brightnessAuto/ManualBlocked.

☑️ Checking the Game Turbo settings

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Memory Expansion: Myths and Realities of Virtual RAM

A feature Xiaomi calls “Memory Extension” and other brands call Virtual RAM, allows you to use part of the internal drive as RAM. Technically, this is a swapping technology where the system unloads rarely used data from fast RAM to slower, but bulkier flash memory, which helps keep more applications open in the background.

However, there is a common misconception that this feature always increases speed.In fact, the read and write speed of an embedded drive (even UFS 3.1 or 4.0) is significantly lower than that of real RAM. If your smartphone has enough physical RAM (8 GB or more), enabling this feature can even slightly reduce overall system responsiveness due to unnecessary write operations.

For owners of budget models with 4 or 6 GB of RAM, this option is really useful, it allows the system not to “kill” background applications so often, but it is worth remembering that active use of virtual memory increases the wear and tear of the drive, although modern memory controllers are designed for high loads.

⚠️ Warning: Before activating memory expansion, make sure you are free. 4-5 GB of internal memory, otherwise the system may start to work unstable due to lack of space for cache.

To activate or change the amount of virtual memory, do the following:

  1. Open the Settings.
  2. Go to the Additional or Advanced Settings section.
  3. Select the item Expansion of memory.
  4. Select the desired volume (for example, +2 GB, +4 GB) and restart the device.
Impact on the life of the storage device
Using a portion of the flash memory for RAM theoretically increases the number of cell overwriting cycles. However, current wear leveling algorithms in Xiaomi smartphones minimize this risk by making it negligible within the normal life of the device (3-4 years).

Optimizing MIUI and HyperOS for maximum speed

MIUI shells and the HyperOS that replaced them contain a host of visual effects that can create the illusion of lag on weak devices. Turning off or speeding up animations is the first step to feeling “high performance,” and the system begins to respond to touch instantly, without delaying the rendering of transitions.

You should also pay attention to the Memory feature in the settings menu, where you can start a deep cleanup that will not only close the background applications, but also clean up the system cache accumulated during use, and regularly conducting this procedure helps to maintain stable operation of the device, especially if you are actively using messengers and browsers.

An important aspect is managing the autorun of applications. Many programs tend to run with the system and hang in the background, consuming resources. Limiting their activities is the key to free RAM. Xiaomi has a powerful built-in tool for controlling autoruns, which is often more effective than third-party cleaners.

List of actions to speed up the interface:

  • 🎨 Animation Scale: In the Developer Menu, scale down windows and transitions to 0.5x.
  • 🔒 Blockers: Turn off live wallpaper and widgets with frequent updates on your desktop.
  • 📲 Updates: Always install the latest security patches and system versions as they contain code optimization.

💡

Use the Classic or Minimalist theme without heavy widgets if you feel the interface is slowing down. The shell graphics also add GPU resources.

Hidden developer settings for advanced users

For those who want to have full control of their device, the Developer Menu gives you access to Android’s deep settings, where you can forcely limit the number of background processes or change the size of the cache, a powerful tool that requires caution, as incorrect settings can lead to unstable system operation.

One useful feature is “Don’t turn off screen” when charging, which is convenient for navigation or reading, but does not directly affect performance. A more important parameter is “Window animation.” Changing this parameter to “No animation” or “0.5x” visually speeds up the smartphone’s performance at times, as the device spends less time rendering intermediate frames.

You can also find settings related to graphics drivers on this menu, and in some versions of Android, you can choose the system driver Graphics Driver, which can help you run old games or, conversely, improve compatibility with new emulators, and you only need to experiment here if you understand what each setting is responsible for.

⚠️ Warning: Changing the settings in the developer menu, such as the “Background Process Limit,” can cause applications to constantly restart, increasing battery consumption and losing data.

How to turn on the developer menu:

Settings → About Phone → 7 times click on "Version MIUI" or "Version OS"

💡

The developer menu is a powerful fine-tuning tool, but for 95% of users, standard MIUI/HyperOS settings are enough for a comfortable work.

Temperature and the impact on speed

Temperature is the main enemy of high performance. Once the sensors detect heat above a certain threshold (usually around 40-42 degrees), the trottling mechanism takes effect. The CPU frequency drops dramatically to reduce heat generation, and this can happen even in simple tasks if the phone is in the sun or in a dense case.

Owners of Black Shark gaming smartphones (a subsidiary brand) or Ultra flagships know the importance of external cooling. Using coolers allows the processor to operate at maximum frequencies for long periods without resetting. For ordinary users, it is important to simply remove the case while charging or heavy games.

System monitoring in MIUI allows you to monitor the temperature in real time through the security plugin, and if you notice that the phone starts to brake after heating, the problem is not the lack of power, but the heat sink, in which case the software accelerators will not help, you need physical cooling.

Why does the phone warm up even in plain sight?
Often the cause of background heating is "stuck" processes or buggy applications that continue to consume CPU resources. Check the battery statistics in the settings to find the culprit, and try to clear the cache of a particular application or delete it.
Does a full memory affect speed?
Yes, if the storage space on the built-in drive is less than 10-15% of the total, the speed of writing and reading data can significantly decrease, due to the peculiarities of the flash memory, which requires free space for efficient data distribution.
Do I need to close applications manually?
In modern versions of Android and MIUI, the system manages memory efficiently, and forced closure of applications often backfires: the system has to re-run them, which consumes more power and processor time than simply storing them in a folded state.
Does resetting to factory settings help?
Wipe Data often works wonders with older devices that have been accumulating system debris for years, a radical but effective way to bring back the sluggishness when software optimization is no longer working.