Why Xiaomi Redmi 4X is slowing down: a complete guide to acceleration

Many users are faced with a situation where the once-quick smartphone starts to work slowly. If your Xiaomi Redmi 4X slows down, it does not always mean that it is time to buy a new device. Often the problem lies in software failures, overcrowded storage or the peculiarities of the MIUI shell, which over time becomes more demanding.

In this article, we will take a closer look at the underlying causes of performance decline and suggest concrete steps to address them: Optimizing the system can give the device a second life, even given its age and hardware limitations.

Hardware limitations and physical wear

The first thing to consider is the age of the device. Redmi 4X came out a few years ago, and modern applications have become much heavier. The Snapdragon 435 and 2 or 3 GB of RAM, which were once considered the standard, are now under tremendous strain. When you open a heavy social network or navigator, the system simply does not have the resources to process data quickly.

Also, physical wear and tear of flash memory plays a role, and over time, memory cells degrade, which leads to slower read and write speeds, manifested in long application run and interface hangs.

It's important to understand the difference between RAM lags and slow storage: in the first case, applications are offloaded from memory, in the second case, the phone thinks for a long time before performing any operation, memory degradation is irreversible, but its impact can be minimized.

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The hardware resource of Redmi 4X is exhausted by modern standards, so maximum performance is achieved only with a minimum number of running background processes.

Overflow of built-in storage

One of the most common reasons why Xiaomi Redmi 4X is starting to slow down is internal memory filling. Android and MIUI require free space to create temporary files and cache. If less than 10-15% of the total is free, the speed drops catastrophically.

Users often forget that messengers like Telegram or WhatsApp can take up gigabytes of space. Photos, videos and browser cache also quickly eat up the available space. When memory is full, the system has nowhere to “turn around” for background tasks.

For a diagnosis, go to the settings menu and select Memory, where you will see detailed information about what exactly takes up space, and it is recommended to regularly delete old files or transfer them to an SD card or cloud storage.

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Use the built-in Cleanup app with caution, but check the Downloads folder and messenger cache manually regularly, as automatic cleaners often skip hidden files.

Background processes and autoloading

The MIUI shell is known for its aggressive policy on background processes, but over time, the number of applications installed grows. Every application added to the autoboot consumes RAM and CPU time, even if you don't use it. This puts a constant strain on the CPU.

Many programs ask for auto-run permissions by default, and over time, there are so many that the phone simply doesn't have time to process all the requests, leading to friezes and interface lags, especially when the device is turned on.

⚠️ Warning: Disabling system processes in the boot menu may cause your phone to malfunction.Be careful not to touch services you don't know the purpose of.

To fix this, you need to go to the settings and find the Applications section, where you can manage permissions and auto-start, and turn off all the extras, leaving only messengers and alarms.

Visual Effects and Animations by MIUI

Beautiful transition and interface animations are Xiaomi's calling card, but on a Snapdragon 435 processor they can be a bit of a burden. The Adreno 505 graphics accelerator does basic tasks, but the excess of visuals causes delays when switching between windows.

You can significantly speed up the response by changing the animation settings, which requires activating the developer menu. Go to Settings → About Phone and press 7 times on MIUI Version. Then a new section will appear in the advanced settings.

In the Developer menu, find the animation zoom options. Change the values from 1x to 0.5x, or completely disable them. This will make the interface less smooth visually, but much more responsive.

Advertising modules and system debris

One of the hidden reasons why the Redmi 4X might be slowing down is the MIUI ad services, which periodically loads ads in standard applications such as Explorer, Music or Themes, which consumes Internet traffic and loads the processor.

In addition, the system accumulates “system debris” – remnants of deleted applications, error logs and temporary update files, and regular cleaning helps free up resources.

Settings → Passwords and security → Access to personal data → msad (disable)

Disabling ads is an important step for owners of budget devices, not only will it remove banners, but also reduce the load on the network and the processor, and it is also recommended to disable receiving recommendations in the application folder.

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For deep cleaning, use the “Security” → “Clean” mode, but read the descriptions carefully before removing system files so as not to delete important data.

System update and resetting

Sometimes performance issues are solved by updating the firmware. Xiaomi developers release patches that optimize RAM and fix bugs. Check for updates in the About Phone menu.

However, if the phone is old, newer versions of Android can slow it down, which is a radical but effective method that removes all user data and returns the system to its original state.

⚠️ Warning: Before performing a reset (Wipe Data), be sure to back up all important contacts, photos and documents, as they will be irretrievably deleted.

To reset, go to Settings → Advanced Settings → Restore and Reset. Select Reset. Once rebooted, the phone will work as new, without accumulated debris and program conflicts.

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Full reset (Factory Reset) is the most effective tool against software lags, if the hardware part of the device is serviceable.