Why Do Most Smartphones Slow Down Over Time?


Present study examines the reasons for the slowdown of smartphones on Android and iOS platforms, in which comprehensive solutions are provided for users. Mostly, by increasing age, human mobility decreases. We are like ordinary machines or old hair dryers that work less efficiently over time. Does this apply to digital gadgets, especially smartphones?

Users expect these products to work forever and at the same initial speed. In fact, this is not the case and the performance of smartphones decreases with time. See the experience of people who have worked with different types of these products for years. After a few years of the life of each smartphone, signs of wear and tear appear, such as still images and slow loading, or not loading apps and not sending text messages.

These problems are not limited to Android phones, and older iPads or iPhones with a newer version of iOS have extremely poor performance. The way to increase performance is slightly different for each platform. Therefore, first we will examine the reasons for the decrease in performance in Android and refer to the solution.

Waste of space and performance by installing heavy operating system updates and app

Android phones do not have the same software as in previous years, and more up-to-date software will be released over time. Android OS updates may not be well-optimized for the user’s smartphone upon download and may slow down performance.

Sometimes it is possible for a telecommunications service provider or a product manufacturing company to add useful software to any update that slows down the operating system by running in the background.

If no updates are provided for the operating system or the user does not install the updates, applications are running on the new smartphone, and as developers have access to smartphones with faster hardware, games and other applications may become faster on the device. Older to be disturbed. This is true of all platforms.

Over time, the size of websites increases, desktop software requires more RAM, and computer games are installed on more advanced systems. For example, Microsoft Office 97 software is no longer usable, and a newer version with more features that require a better specification system has replaced the software. The same is true for Android apps.


In such cases, there are limited solutions for the user to increase the performance of the phone. If you feel that your smartphone’s operating system is slow, you can install a custom ROM that does not have additional malware or launchers provided by the phone manufacturer. Needless to say, this method is usually suitable for professional users, and most of the problems that arise after installing a custom ROM, reduce the value of using it. If the speed of your applications to be slow, install the Lite Version of these softwares.

Decreased performance of applications and operating systems as a result of background processing

Often, while using a smartphone, users gradually install more applications on it, some of which run on the active phone and run in the background. If there are a lot of applications installed in the Android device that run in the background, these softwares may slow down the device by consuming CPU resources and filling the RAM memory.

Moreover, if you use live wallpaper or have added many widgets to your smartphone home screen, they may consume memory, CPU, and GPU resources. By modifying them on the smartphone home screen, you can improve device performance and increase battery life.


To fix it, disable the live wallpaper and remove the widgets from the home screen and uninstall or disable idle applications. To find out what applications run in the background, in the Marshmallow and newer versions of Android, open the “Developer” section and enter the Services menu. If you are not using an application and it is running in the background, uninstall it. The apps that will not be deleted are the ones that were on the phone by default from the beginning; So disable them.

Lack of space to run the operating system with full storage

Many developers design applications to run applications faster, which speeds up processing by copying certain sections of RAM. These are specific sections of content that the user may want to revisit. For example, a web browser may copy the contents of all tabs, even if only one tab is visible at a time. This feature is called “drag” and will run applications and tasks faster as long as the device memory is not full.

The actions of a number of developers are wrong, their applications are slowing down over time; It also disrupts the entire system. Memories become slower as they fill, so data storage on the file system is slower when full. This mode causes the Android operating system and applications to run more slowly. The storage page in the settings menu shows the amount of memory filled with the content type.

If cache files are not checked and deleted, they increase over time and consume a small amount of memory. So, deleting cache files will free up disk space and improve the performance of the file system until these cache files inevitably refill the memory.


The images and videos you capture with the camera are the biggest reason for the lack of space; Therefore, it is better to delete them from the phone sometimes after making a backup. You can even manually backup be using the Google Photos service. If the problem persists, uninstall unused applications, delete unnecessary files, and clear the application cache to free up storage space. Moreover, resetting the factory settings and installing only the required applications will return your smartphone to the factory default.

Why are iOS-based phones slow? What is the reason?

Due to previous studies, the reasons for the slowdown of smartphones and the way to increase performance for each platform are different. Recently studies in this field shows that the smartphone manufacturers are deliberately reducing the performance of older models of their products. So, sometimes background programs, etc. can be responsible for the problems that occur as a factor other than sluggish memory.

Since iPhone 6, iPhone 6S, and SE users noticed the slowdown in their smartphones compared to the past, Apple has admitted that it has deliberately slowed down older handsets. Apple corporation has released an update to the iOS operating system specifically targeting older iPhone models to sell faster.

Although some reports claim that Apple is slowing down older phones when launching the new iPhone, the company said in a statement that the reason for the upgrade was another solution. Large corporation blamed the technology for extending battery life and preventing old iPhones from shutting down suddenly to protect electronic components. However, regardless of this issue, there are various reasons for the decline in performance on iPhones.

Problems with the old version and system bugs when releasing the new version

Installing the beta or newer versions of iOS creates problems that can be fixed by installing newer versions. For example, with the release of iOS 13, users reported bugs that were fixed with the release of version 13.1. Updates have security patches and sometimes fixes for known issues. As well, upgrading your operating system may be an effective solution if your phone is normally slow.


First, make sure your phone supports the new operating system by going to the “Software Update” section in the “General” section of the Settings app. If the new iOS is available, select the “Download and Install” option. Then, enter your password and click on the Agree to Terms and Conditions option. The device downloads the new update in the background. After the download is complete, a notification will appear on the iPhone. In the window that opens, click the “Details” option to take you to the “Software Update” page in the settings menu. Select the “Install Now” option.

Unused applications that take up RAM and processing capacity

A common advice given to speed up your iPhone is to close unused apps. To do this, double-click the Home button on the iPhone SE 2, iPhone 8, and older models, and swipe up from the bottom of the screen on the iPhone X and newer models or the iPad Pro 2018 and later.

In this case, active applications are displayed. Dragging each of them upwards closes the application. Apple has long rejected this strategy, claiming that it does not affect the performance of the iPhone. The alternative solution is a complete restart of the iPhone.


On iPhone 5s and older models, press and hold the Sleep key on the top of the smartphone. When the Power Off slider appears, drag it to the right and wait for the iPhone to turn off. The process is the same on the iPhone 6, 6s, 7 and 8; But the “Sleep” key is on the right side of the phone. On iPhone 10 and newer models, pressing and holding the button on the side of the device activates Siri;

So, to turn off the devices, you must first press the volume up and volume down keys and the side button. In this case, the Power Off slider option appears. After turning off the phone, turn it on again.

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