Modern smartphones in the Xiaomi, Redmi and POCO line have impressive performance, but even powerful devices can start to work slower over time. Most often, the cause of brakes and sudden closures of applications is overcrowded RAM. When the system lacks resources to process background processes, the interface begins to hang and games fly to the desktop.
RAM cleaning isn't just about removing debris, it's about keeping MIUI or HyperOS shells running. Unlike internal memory, which stores photos and files, RAM is working with data right now, and overflowing it is critically impacting performance. Below, we'll look at all the optimization options available, from standard tools to hidden engineering menus.
Don't ignore the system's resource-short signals. Timely cleaning allows you to extend the battery life, because the processor doesn't have to run in overload mode. Let's look at how to properly manage your device's resources.
⚠️ Warning: Forced shutdown of system processes through the engineering menu can cause the phone to run unsteady. Use advanced methods only if you understand the consequences of your actions.
Use of the built-in "Security" application
The easiest and safest way to free up resources is to use a regular toolkit from developers. Each Xiaomi smartphone has a system application Security preinstalled, which automatically monitors resource consumption, which allows you to close the background processes with a single touch and make room for active tasks.
To start the cleaning procedure, you need to find a green shield icon on your desktop. Inside the interface, you'll see a pie chart showing the current download. Pressing the Cleanup button initiates the process of closing the least important applications. The system decides which processes can be completed without harming the user's current session.
But automatic cleaning isn't always effective for serious problems, it only closes the visible apps, leaving Google and MIUI deep services active. For a deeper job, go to the app's settings through the three-dot menu in the top right corner and check the acceleration settings.
☑️ Checking the regular cleaning
It's important to understand that using the speed function often can backfire, that the system has to reopen frequently used applications, which puts additional strain on the processor, and use this method wisely when you notice clear signs of memory shortage.
Manual control of running applications
Many users underestimate the capabilities of a standard task manager, called by a swipe or menu button. In the MIUI shell, this tool allows you not only to switch between windows, but also to manage priorities. With your finger in the thumbnail of the application, you can block it or force it to terminate.
Special attention should be paid to “heavy” applications such as social networks and marketplaces, which are prone to proliferation and consumption of huge amounts of resources even when folded, and regular manual cleaning of such programs from the list of running tasks is a good habit for owners of devices with a RAM capacity of up to 6 GB.
There is also a Memory Extension feature that takes a portion of internal memory and uses it as virtual RAM, available from the Settings menu → Additional Settings → Expand Memory, activating this setting helps the system keep more applications open, even though the virtual memory speed is lower than the physical one.
- 📱 Social media: Telegram and WhatsApp often hang in the background, consuming up to 500MB.
- 🛒 Marketplaces: Ozon and Wildberries require a lot of resources to display graphics.
- 🎮 Games: Even folded, they can continue to load the processor.
⚠️ Warning: Do not block system applications with a gear icon or Mi logo. Forced shutdown may disrupt notifications or alarms.
Set up background activity restrictions
To prevent the memory from being filled with garbage automatically, you need to adjust the rules of conduct for each application. Modern versions of Android and MIUI have a flexible control mechanism. Go to Settings → Applications → All applications, select the desired program and find the item “Activity Control”.
You can choose between a No Limits strategy for instant messaging, or a Background Activity Limit for games and videos, and a second option that forces the system to freeze the app as soon as you fold it, which saves RAM.
Also worth checking for auto-start. The Security app has a section called Auto-Start, and disable all programs except messengers and alarm clocks, which will prevent unnecessary processes from starting immediately after the phone is turned on.
The way to set up quickly:
Settings → Applications → All Apps → [Select App] → Activity Control → Limit background activityBy fine-tuning these settings, you can forget about manual cleaning for a few days, and the system will efficiently allocate resources, prioritizing only what you really need right now.
Hidden functions and debugging over USB
For advanced users, you can fine-tune it through the developer menu, and to activate it, you need to quickly click on the MIUI version number in the About Phone section several times, and then the "Developers" option will appear in the "Additional" menu.
Within this section, we are interested in the item "Background Process Limit"; the default is "Standard Limit", but it can be changed by forcibly limiting the number of simultaneous applications, for example, setting a value "No More than 4 processes" will force the system aggressively close the excess.