What to do if the phone is lagging Xiaomi Redmi: the complete guide

Owners of Xiaomi and Redmi smartphones often face a situation when a once-quick device suddenly begins to hang, open applications for a long time or unexpectedly close them. This is a common problem that can occur on both budget models and flagship devices after a certain period of use. MIUI HyperOS, which consumes significant system resources for background processes and visual effects.

However, don’t just go to the hardware or think about buying a new gadget. In most cases, the accumulation of system debris and incorrect animations are the main culprits of performance. Understanding how the Android operating system manages the resources of the processor and RAM will allow you to fix most problems yourself. Below we will discuss proven methods that will help return your device to its previous speed.

Diagnosis and analysis of the causes of braking

Before we start taking drastic measures, we need to understand what is causing the CPU load. Often users install heavy apps or games that are not optimized for a particular CPU model. It is also worth checking the temperature of the case: if the phone is hot, the system automatically reduces the CPU frequency (trotling) to protect components, which leads to lags.

The second important aspect is the internal memory filling: Modern versions of Android require free space to create temporary files and cache. If the storage is more than 90% full, the speed of writing and reading data drops significantly. Check if the folder with messengers is crowded, since WhatsApp and Telegram tend to accumulate gigabytes of hidden data.

• 🔍 Check the list of running apps and close the ones that aren’t in use right now.
• 🌡️ Evaluate the heating of the case during the work of resource-intensive tasks.
• 💾 Make sure you're at least free. 15-20% Total internal memory.
• 📡 Test the work in safe mode to exclude the influence of third-party software.

You can use the built-in tools to get a deeper diagnosis. Go to the settings and find the section about the phone that shows memory usage. If you see that free memory is critically scarce even after cleaning the cart, you should consider transferring photos and videos to an external medium or to the cloud.

Cache Cleanup and Memory Optimization

The first step to speed up Redmi should be to thoroughly clean the system of temporary files. The MIUI shell for this includes a built-in application "Security", which works quite efficiently for basic cleaning. However, for deep cleaning, it is better to use specialized utilities or cleaning through storage settings to remove the remnants of remote applications.

Special attention should be paid to the cache of social networks and browsers. These applications store a huge number of images and videos that are downloaded every time you run. Clearing the cache will not delete your personal correspondence or passwords, but will free up space and speed up the launch of programs. Remember that constantly forced to stop applications in the background can, on the contrary, slow down, because the system has to run them again.

There is also a hidden feature in the developer menu that allows you to limit the number of background processes, which is useful for devices with a small amount of RAM (3-4 GB), activating this mode, you will prevent the system from holding more than two or three folded applications in memory, which will free up resources for an active task.

⚠️ Warning: Don't use third-party accelerators from Play Market that promise miraculous productivity gains, often consuming more resources than they do, and imposing ads on them.

Customization of animations and MIUI interface

Xiaomi heavily relies on animations, which can create an illusion of lag on older processors. Reducing the scale of these animations makes the interface feel snappier and more responsive. This is a standard procedure for Android enthusiasts, but it is often overlooked by average users.

To access these settings, you need to enable Developer Options. Go to Settings → About phone and tap on the MIUI Version (or OS Version) seven times rapidly until a message appears confirming that you are now a developer. Then, navigate to Settings → Additional settings → Developer options.

Once inside the developer menu, scroll down to the"Drawing" section. You will find three key parameters: Window animation scale, Transition animation scale, and Animator duration scale. By default, they are set to 1x. Changing them to 0.5x or even turning them off completely (Animation off) will make windows open instantly, removing the perceived delay.

In addition to animations, you should consider disabling unnecessary interface functions, for example, the Widget Ribbon (to the left of the main screen) constantly updates data and consumes resources, if you do not use it, you should turn it off in the settings of the main screen. Also, reducing screen resolution or refresh rate (if the model allows) can significantly improve the performance of the screen. FPS play.

Managing Autoboot and Background Processes

Many apps tend to run with the phone and stay active in the background, waiting for notifications. This devours RAM and loads the processor with constant interruptions. MIUI has a powerful tool to control this: the AutoRun menu.

Find the Apps section in the settings, or search by settings by entering AutoStart. Here you will see a list of programs that start automatically. Leave only messengers (for messages to come) and system services on. Everything else, including stores, social networks and games, safely turn off.

Also, look at the battery settings for each heavy application: Set No Limits mode only for those programs that should always work, and for others, select Limit Background Activity, which will prevent hidden applications from running when the screen is off.

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Use Second Space or Guest Mode to create a clean environment. Sometimes, running your phone in a clean profile without the apps you have installed helps you know if hardware or software is to blame.

System update and resetting

Xiaomi developers regularly release updates that not only add features, but also fix optimization errors. If your phone is lagging, check for updates in the Settings menu → About the phone. Sometimes the problem is known and already solved in the new version of the firmware.

However, if the phone is old and newer OS versions become too heavy for it, the situation may be reversed, in which cases users often look for a way to roll back to a lighter version or install custom firmware (such as Xiaomi.eu), which is devoid of advertising and superfluous Chinese software.

If the software methods don't work, the last resort is a full factory reset, which will delete all the data, so make sure to back up. Reset removes the accumulated errors in the registry and file conflicts over the years.

⚠️ Warning: Before resetting, make sure you remember the password from your Mi Account and Google account. Once reset, the phone will require them to be entered to confirm ownership (protection) FRP).

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Wipe Data solves 90% of software lag problems, but requires a complete reinstallation of applications and reconfiguring the phone.

Optimization for games and heavy tasks

For gamers, MIUI provides a special application called Game Turbo, which not only collects games into one folder, but also redistributes CPU resources, prioritizing the game process over background tasks. Adding your game to this list is mandatory for FPS.

Inside Game Turbo settings, you can choose a performance profile. For shooters and races, choose Speed or Professional mode, turning off unnecessary notifications and increasing the sensitivity of the touchscreen. It is also useful to reduce the quality of graphics inside the game itself - often the difference between High and Medium is visually invisible on the small screen, but gives a huge increase in frames.

Remember that games require a stable Internet connection. If the lags only occur online, the problem may be on the network, not the phone. Try switching from Wi-Fi to mobile Internet or vice versa to rule out connection problems.

Hardware Limitations and Replacement of Device

Over time, battery capacity drops, and if voltage drops under load, the processor throttles aggressively. Also, flash memory (storage) degrades over years of writing and rewriting data, leading to slower read/write speeds.

If your Redmi is over 4-5 years old and has less than 4GB of RAM, modern versions of apps (especially YouTube, Instagram, Chrome) can run slowly simply because they have become too heavy for the old hardware.

Xiaomi’s budget segment now offers excellent performance even in the initial Redmi Note series models, which will run faster than the older flagships thanks to modern memory compression algorithms and more efficient processors.