The situation when a popular instant messenger suddenly starts to freeze, takes a long time to load messages or closes completely is familiar to many smartphone owners Samsung Galaxy. The problem why it slows Telegram on an Android Samsung phone often lies not in the application itself, but in the features of system optimization One UI or the local memory of the device is full.
Users often attribute lags to a “weak phone”, but even the flagship models of the series Galaxy S23 or S24 may have difficulty processing a huge amount of media content that accumulates over months. In this article, we will analyze in detail the technical causes of slowdowns and provide step-by-step troubleshooting instructions.
Sometimes a simple reboot is enough, but in 80% of cases, more in-depth configuration of data storage settings and network protocols is required. Let's find out which hidden processes are consuming your processor resources and how to return the messenger to its former speed.
Cache overflow and accumulation of temporary files
The most common reason why Telegram slows down on Android due to uncontrolled growth of the cache size. By default, the messenger saves all viewed photos, videos and voice messages to the internal memory of the smartphone for quick access in the future. Over time, this folder can grow to tens of gigabytes, which creates a colossal load on the file system Samsung.
When the cache volume exceeds a certain threshold, the application spends significant time indexing files and searching for the necessary data, which externally manifests itself as a “freeze” of the interface when scrolling through chats. This is especially noticeable on series models Galaxy A with memory type eMMC, the reading speed of which is lower than that of the flagship UFS.
To check the current amount of space occupied, go to the settings of the application itself. Click on the menu (three bars) and select Settings → Data and memory → Memory usage. Here you will see visual statistics: how much space images, videos and other files take up.
- 🗑️ Click the "Clear Telegram cache" button - this will safely delete temporary files, but save your correspondence.
- 📉 Install cache size limit, for example 1 GB or 500 MB, so that the application automatically deletes old files.
- 🔄 Enable the "Auto delete media" feature by setting a retention period, for example, 3 days or 1 week.
⚠️ Attention: Clearing the cache through the Android settings (in the Applications section) may result in you having to download all media files again when opening chats, which will temporarily increase traffic consumption.
If you have little free space on your phone, set the Telegram cache limit to the minimum value (500 MB). The application will work more stable, since the system will not have to constantly manage gigabytes of small files.
The influence of the One UI shell and battery optimization
Proprietary shell One UI from Samsung known for its aggressive energy saving algorithms. The system strives to extend battery life by limiting background app activity. This can lead to the fact that Telegram does not receive timely notifications or connects to the server for a long time at startup, creating the illusion of "brakes".
Often the problem occurs after a firmware update, when power consumption settings are reset or process priorities change. If the messenger is placed in the "Sleeping Applications" list, the system will forcefully stop its network activity as soon as you turn off the screen.
You need to manually add the messenger to the exceptions. Go to Settings → Device maintenance → Battery → Background restrictions. Make sure that the application is not in the "Applications in deep sleep" list.
It is also worth checking the battery optimization settings specifically for this application. Go to Settings → Applications → Telegram → Battery and select mode Unlimited. This will allow processes to run without system intervention, which is critical for stable operation of VoIP calls and fast loading of channels.
Problems with network connection and proxy
Sometimes the reason Slow operation lies not in the phone, but in the communication channel. The encryption protocols used in Telegramrequire a stable connection. If you are using mobile data in an area with poor reception or congested Wi-Fi, data packets may be lost, causing resending and delays.
Particular attention should be paid to proxy settings. Many users enable built-in proxies to bypass blocks, but free servers often have low bandwidth and high ping. This directly affects media loading speed and interface responsiveness.
Try disabling the proxy temporarily to see if the situation improves. Go to Settings → Data and memory → Proxy server and turn the switch to inactive. If the speed has increased, then the problem is in the selected server.
| Connection type | Probable problem | Solution |
|---|---|---|
| Mobile 4G/5G | Unstable signal, switching towers | Enable Airplane mode for 10 seconds to reconnect |
| Wi-Fi 2.4 GHz | Channel overload by neighbors | Switch to 5 GHz network or reboot the router |
| Built-in proxy | High latency (Ping > 200 ms) | Change server or disable proxy |
| VPN application | Encryption tunnel conflict | Disable third-party VPN when using Telegram |
High ping when using a proxy is the main reason for avatars and videos to freeze. Always check your connection speed before enabling block bypass.
Outdated version of the application and software conflicts
Developers regularly release updates that contain not only new features, but also important fixes for performance bugs. If you have an old version installed, it may not work correctly with new versions of Android or system libraries. However, the opposite situation also happens: the latest update contains bugs that cause lags on specific processor models. Telegram, it may not work correctly with new versions of Android or system libraries Samsung.
However, the opposite situation also happens: the latest update contains bugs that cause lags on specific processor models Exynos or Snapdragon. In this case, you should wait for the patch to come out or temporarily roll back to the previous version by downloading the APK file from a reliable source.
Other installed apps can also cause conflicts, especially those that have access to notifications or are overlaid on top of other windows (for example, chat bubbles or memory cleaners). Try starting the phone in safe mode to exclude the influence of third-party software.
To enter safe mode on Samsung: hold down the power button, then press and hold the "Shutdown" icon on the screen until you are prompted to switch to safe mode. If in this mode Telegram works quickly, then the problem is caused by another installed application.
Animation and graphics acceleration settings
The shell One UI uses many smooth animations to transition between screens. On older or low-end phones, these effects can tax the GPU, making the app feel like it's sluggish. Disabling or speeding up animations can significantly improve the responsiveness of the interface.
To do this, you need to activate the developer menu. Go to Settings → About phone → Software information and quickly click 7 times on the "Build number" item. After this, a new section “Developer Options” will appear in the main settings menu.
In this section, find the subsection "Drawing" or "Animation". Find the items "Window Animation", "Transition Animation" and "Animation Duration". Change their value from standard 1x to 0.5x or completely disable (Off).
- 🚀 Reducing the animation scale visually speeds up the work of all applications, including instant messengers.
- 🎨 Disabling "Smooth display" in accessibility settings may also help.
- 📱 On models with a 120 Hz screen, make sure that the display settings are set to "Adaptive" rather than "Standard".
Secret GPU setting
In the developer menu you can find the item "Disable HW overlays". Try turning it on if you experience artifacts or strong slowdowns when scrolling through long lists of channels.
Radical measures: reinstalling and resetting data
If none of the above methods helped, the files of the application itself may be damaged or critical indexing errors have occurred in the database. In this case, the solution would be a complete reinstallation.
Before deleting, be sure to create a backup copy of important chats if you use local backups (although Telegram stores the history in the cloud, the settings for secret chats and some folders may be local). After deleting the application, restart your phone.
Then download the latest version from the official store Google Play or Galaxy Store. When you first log in, the system will re-create the file structure and download the latest data from the server, which often eliminates hidden accumulation errors.
adb shell pm clear org.telegram.messengerFor advanced users: this command can be entered through a computer in USB debugging mode to completely clear application data without deleting it. This is equivalent to clicking the "Erase data" button in Android settings, but is faster and more reliable.
⚠️ Attention: Full data wipe will delete all locally stored files and settings within the application. Secret chats will be permanently deleted, since they are not stored on the server.
☑️ Checklist before reinstallation
Frequently asked questions (FAQ)
Why does Telegram heat up the phone when work?
Heating is usually associated with the active process of decrypting messages, loading heavy videos, or an unoptimized background process. Try lowering the quality of downloaded videos in the settings or disabling media autoloading.
Does the fullness of the phone's memory affect the speed of Telegram?
Yes, directly. If the free space on the internal storage is less than 10%, the Android system starts to work slower, which affects all applications, including instant messengers. Free up space for stable work.
How to disable auto-downloading of videos in Telegram?
Go to Settings → Data and memory → Autoload media. Disable the checkboxes for the items “When using a mobile network” and “When connected to Wi-Fi” so that videos are downloaded only when clicked.
Will resetting the phone to factory settings help?
This is an extreme measure. Resetting will erase all data from the phone and return it to its original state. If the problem is a One UI system crash, this will help, but first try reinstalling the application itself.
⚠️ Attention: The menu interface and item names may vary slightly depending on the version of Android and the specific model of your Samsung smartphone. If you do not find the specified item, use the search in the settings.