Has your Samsung Galaxy begun to open applications slowly, freeze when scrolling, or suddenly run out of battery? These are typical symptoms of an overloaded system that appear even on flagships like Galaxy S23 Ultra or Galaxy Z Fold5 after a year of active use. The reasons for the brakes lie not only in the “aging” of the hardware, but also in the accumulation of digital garbage: from the remnants of deleted apps to duplicate processes One UI.

In this article - 10 proven ways to speed up a Samsung phonethat work on all models with Android 12–14 (including budget series Galaxy A i Galaxy M). We will look at both basic methods (clearing the cache, disabling animation) and hidden firmware functions that are kept silent even in the official documentation. No root or complex manipulations - only safe actions that will not violate the warranty.

Before you start, check CPU load in Settings → Device care → Battery → Usage. If there are unknown processes hanging there with a consumption of >15%, first remove suspicious applications - perhaps it is not the phone itself that is to blame, but malware.

📊 How long have you been away did you reset the phone to factory settings?
Less than 6 months
6–12 months
More than a year
Never reset
I don’t know what it is

1. Clearing cache and garbage using built-in tools

System One UI from Samsung has a built-in optimizer, which is often ignored by users. It deletes not only temporary files, but also residual data from uninstalled applications, which can take up to 3-5 GB of memory. Here's how to use it correctly:

  • 🧹 Quick Clean: Hold the power button → select “Device care” → click “Optimize now”. This will clear the system application cache and free up up to 1-2 GB.
  • 🗑️ Deep cleaning: Go to Settings → Device care → Memory, then click "Clean" in the "Unnecessary Data" section. Here .thumbnails, error logs and duplicate files are stored.
  • 🔍 Manual check: In the same “Memory” menu, tap on “Other applications” and sort by size. Delete or clear the cache for apps that occupy >500 MB (for example, Facebook, TikTok, instant messengers).

Tip: if after cleaning the phone still slows down, check Settings → Battery → Background activity. Turn off background activity for applications that you rarely use (for example, games or banking apps).

⚠️ Attention: Do not clear the cache for Google Play Services, Samsung Knox or Android System WebView this may disrupt system operation. Also avoid “optimizers” from the Play Market (for example, Clean Master), which often themselves cause slowdowns.

Residual files of deleted applications|Messenger cache (Telegram, WhatsApp)|Temporary browser files (Chrome, Samsung Internet)|Error logs in the "Diagnostics" section-->

2. Disabling animation and visual effects

Interface One UI is known for smooth transitions and animations that eat up to 10-15% of productivity. Disabling them will not degrade functionality, but will make the phone noticeably faster - especially on budget models like Galaxy A14 or Galaxy M33.

Activate developer mode (if you have not already done so):

  1. Go in Settings → About phone → Software information.
  2. Tap 7 times on the “Build number” item (a notification “You have become a developer” will appear).
  3. Return to the main settings menu and open the new section “Developer options.”

Now disable the animation:

  • 🎨 Window animation scale: Set the value Off or No animation.
  • ⚡ Transition animation scale: The same thing - Off.
  • 🔄 Animation duration: Select 0.5x (total disabling may disrupt the operation of some menus).

After applications changes, the phone will reboot. The effect is noticeable immediately: applications open instantly, and switching between them occurs without freezing.

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If, after disabling animation, some interface elements begin to look sharp, return the window animation scale to 0.5x —this is a compromise between speed and smoothness.

3. Optimizing startup and background processes

Many applications (especially social networks and games) automatically launch when you turn on the phone and hang in the background, consuming memory. On Samsung this is controlled through the menu Autostart, but it is hidden deep in the settings.

How to disable autoload:

  1. Open Settings → Applications.
  2. Tap on the three dots in the upper right corner and select “Special access.”
  3. Go to “Autostart applications.”
  4. Disable autostart for all apps except system ones (Google Play Services, Samsung Push Service etc.).

Additionally limit background activity:

  • 📵 Data limit in background: In the menu of each application (Settings → Applications → [name]), disable “Background data” and “Unlimited data”.
  • 🔋 Battery optimization: In Settings → Device care → Battery → Background activity select “Limit” for unnecessary apps.
Application Recommended action Saving memory
Facebook, Instagram Disable autorun + background data up to 400 MB
TikTok, YouTube Limit background activity up to 600 MB
Messengers (WhatsApp, Telegram) Leave autorun, but disable background media synchronization up to 200 MB
Games (PUBG, Genshin Impact) Disable all background processes up to 1 GB
⚠️ Attention: Do not disable autorun for Samsung Health, Samsung Pay or Secure Folderif you use these functions. This may lead to malfunctions of sensors or payment systems.

4. Transferring applications to a memory card (if supported)

On phones with 8–16 GB of internal memory (for example, Galaxy A04 or Galaxy M13) lack of space is the main reason for the brakes. The solution is to transfer some applications to microSD. However Samsung limits this function for most modern models (starting with Galaxy S20 and Android 11+).

How to check support:

  • 📱 Insert a memory card (recommended UHS-I Class 10 or higher).
  • 🔍 Open Settings → Device care → Memory → Advanced → Storage.
  • 🔄 If there is an option "Transfer data to SD card", your phone supports the function.

If transfer is not possible, use an alternative method:

  1. Install App2SD or Link2SD from the Play Market (root access required on new models).
  2. Create a second partition on the memory card in format ext4 (via MiniTool Partition Wizard on a PC).
  3. Move the cache and application data there (not all apps support this!).
⚠️ Attention: On phones with Android 12+ the transfer of applications to SD is often blocked due to policy. Scoped StorageIn this case, the only way out is to regularly clear the internal memory or use cloud storage (Google Drive, Samsung Cloud).
Why does Samsung limit transfer to SD?

Since 2020, Google has tightened the requirements for Android security. Applications on an SD card are easier to hack or replace, so manufacturers refuse this function. In addition, slow memory cards (class below UHS-I) slow down apps more than eMMC/UFS internal memory.

5. Reset to factory settings (last chance)

If all the previous methods did not help, there remains hard reset. This will delete all data, but will return the phone to factory speed. On Samsung the procedure takes 5-10 minutes and does not require a PC.

Step-by-step guide:

  1. Make a backup via Settings → Accounts and Backup → Backup and Restore (or use Smart Switch from Samsung).
  2. Open Settings → General → Reset → Reset data.
  3. Enter the PIN code and confirm the action.
  4. After rebooting, set up the phone as new (do not restore data from a backup copy immediately - first check the speed of the “clean” system).

What does the reset do:

  • ✅ Removes all residual and conflicting files settings.
  • ✅ Resets the cache ART/Dalvik (system cache, which becomes fragmented over time).
  • ✅ Returns the standard values CPU governor (processor frequency regulator), which could have been changed by “optimizers.”

After the reset, do not install all applications at once. Add them one at a time and monitor the performance. Often the brakes return due to 1-2 “gluttonous” apps.

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Resetting to factory settings is the only way to completely remove system garbage that has been accumulating for years. Even after manual cleaning, up to 500–800 MB of unnecessary data remains on the phone.

6. Firmware and kernel updates (if available)

Samsung regularly releases updates that optimize the performance of the processor and memory. For example, in One UI 6.1 (based on Android 14) a function Auto Blockerhas been added that blocks background processes of malicious applications, and work with RAM Plus (virtual memory) has been improved.

How update:

  • 🔄 Over the air (OTA): Settings → Software update → Download and install.
  • 🖥️ Via Smart Switch: Connect the phone to a PC with the app installed Samsung Smart Switch and check for updates.
  • 📦 Manual firmware: For advanced users - download the latest version from SamMobile and flash via Odin (risk of loss of warranty!).

After updates:

  • 🧹 Clear the cache in Recovery Mode (press Power + Volume Up with the phone turned off, then select Wipe Cache Partition).
  • 🔋 Recalibrate the battery: discharge the phone to 0%, then charge to 100% without breaks.
⚠️ Attention: On phones with Exynos processors (for example, Galaxy S22 for the European market), updates sometimes lead to overheating. If after the update the phone begins to heat up, roll back to the previous version or reset the settings.

7. Optimizing the game mode (for gamers)

If your Samsung slows down in games (Genshin Impact, Call of Duty Mobile, PUBG), not only the hardware is to blame, but also the settings Game Launcher i Game Booster. These tools are supposed to speed up games, but often do not work correctly.

How to set it up:

  • 🎮 Disable Game Launcher: It eats up to 300 MB of memory Go to Settings → Additional features → Game Launcher and deactivate it.
  • ⚡ Enable Game Booster: Settings → Device care → Battery → Advanced → Game Booster Activate the "Maximum performance" mode.
  • 🔧 Graphics settings: In the game itself, install 60 FPS (if supported) and disable anti-aliasing (Anti-Aliasing).

For Galaxy S22/S23 s Snapdragon 8 Gen 2 hidden mode is available GPU Watchdogwhich prevents FPS drop:

adb shell settings put global gpu_watchdog_enabled 1

This command must be entered via ADB (instructions are available on XDA Developers).

8. Alternative launchers and shells

The standard launcher One UI Home is beautiful, but power hungry. On weak phones (for example, Galaxy A12 or Galaxy J6) it can take up to 500 MB of RAM. Lightweight alternatives:

Launcher RAM consumption Advantages
Nova Launcher ~150 MB Flexible configuration, support gestures
Lawnchair ~100 MB Minimalistic design, no ads
Hyperion Launcher ~200 MB IOS style icons, adaptive themes
Smart Launcher 6 ~120 MB Automatic sorting of applications

How to install:

  1. Download the launcher from the Play Market.
  2. When you first launch, select it as the default launcher.
  3. Disable animations in the settings launcher (usually in the “Effects” or “Performance” section).

For maximum effect, disable the standard launcher One UI Home:

  • Go to Settings → Applications → One UI Home.
  • Click “Disable” (do not delete!).
  • Confirm the action.
⚠️ Attention: On some models (Galaxy Z Flip/Fold), disabling One UI Home may lead to malfunctions in multitasking. In this case, return the standard launcher and use. alternative only for the main screen.
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Replacing the launcher is one of the safest ways to speed up your phone without risking the system. However, this will not help if the brakes are caused by a lack of RAM or a weak processor.

FAQ: Frequently asked questions

Is it possible to speed up a Samsung phone without resetting it to factory settings? settings?

Yes, in 80% of cases clearing the cache, disabling animation and optimizing startup help (Sections 1–3 of this article). A reset is only needed if the system is heavily clogged or infected with viruses.

Why does the phone start to slow down after updating Android?

New firmware versions often contain additional ones. background services (for example Digital Wellbeing or Device CareIn addition, updates may reset optimization settings. Try clearing the cache in Recovery Mode and disabling unnecessary functions in Settings → Additional features.

Do they help? “speed boosters” from the Play Market?

No. Applications like Clean Master, DU Speed Booster or CCleaner not only do not speed up the phone, but can also worsen performance by constantly working in the background. Samsung has already built in all the necessary optimization tools in One UI.

How to speed up an old Samsung (for example, Galaxy S7 or J5 2016)?

For phones with Android 7–9 (with 2–3 GB of RAM) will help:

  1. Installation Lightweight firmware (for example, LineageOS without GApps).
  2. Using the launcher Lawnchair or Nova Launcher.
  3. Disabling all animations and background processes.
  4. Replacing standard applications (browser, gallery) with lightweight analogues (Bromite, QuickPic).

If the phone slows down even after this, consider upgrading to a model with 4+ GB of RAM (for example, Galaxy A52 or Galaxy M53).

Is it harmful to constantly clear the cache?

Regularly clearing the cache (once every 1-2 weeks) does not harm the phone. However do not clear the cache daily this will force applications to rebuild temporary files, which can temporarily increase the load on the processor. Exception: if you notice that a particular application (for example, Instagramhas started to slow down), clearing its cache will help.