Has your smartphone started to slow down, applications open with a delay, and animations are jerky? Do not rush to buy a new gadget or risk the firmware through Android started to slow down, applications open with a delay, and animations twitch? Do not rush to buy a new gadget or risk the firmware through root access. Modern versions of Android (from Android 10 to Android 15) offer a lot of hidden features to speed up work without hacking the system. This article contains only proven methods that do not require technical skills and do not violate the warranty.

We tested each method on devices of different brands: from budget Redmi Note 12 to flagship Samsung Galaxy S23 Ultra. The results showed that proper optimization can increase speed by 30-50% even on older smartphones with 4 GB of RAM. Important: all recommendations are safe, but some settings may be reset after a system update.

Before you start, check the free space on your device - if there is less memory 10% of the total volume, free up space first. And remember: on devices with Qualcomm Snapdragon 8 Gen 2 and newer processors, the effect of optimization will be more noticeable than on budget chips like MediaTek Helio G85.

📊 How long has it been since you reset your phone?
Less than a month
3-6 months
More than a year
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I don’t remember

1. Enabling developer mode and hidden performance settings

Developer mode is a treasure trove of tools for fine-tuning Android. It's hidden by default, but takes 30 seconds to activate. On Samsung, Xiaomi i Google Pixel the path is the same:

  1. Open Settings → About phone
  2. Find item Build number (on some devices — MIUI version or Software version)
  3. Tap on it 7 times in a row - a notification “You have become developer!"

Now a new section will appear in the main settings menu For developers. Here we are interested in three key options:

  • 🔧 Window animation: set the value Animation is disabled or 0.5x —this will speed up opening applications
  • 🔧 Animation of transitions: similarly reduce to 0.5x or disable
  • 🔧 Process limit: select Standard limit (on weak devices you can try Maximum 2 processes, but this may close background applications)
⚠️ Attention: On some devices Huawei and Honor after activating the developer mode, warnings about “unsecure configuration” may appear. They can be ignored - this is standard EMUI behavior.

Disable window animation|Reduce transition scale to 0.5x|Enable GPU acceleration (if available)|Disable USB debugging (if not used)

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2. Optimizing background activity of applications

Many applications continue to run in the background even when you are not using them. This eats up RAM and CPU. time. Android 12+ an improved system for managing background processes has appeared, but by default it is too loyal to applications.

To limit background activity:

  1. Go to Settings → Applications
  2. Select Special access → Battery optimization
  3. Tap All applications and select Limited for apps that should not run in the background (messengers and system applications should not be touched)

For more aggressive optimization:

  • 📱 On Xiaomi/Redmi/POCO: Settings → Battery → Performance mode → Select "Battery saver" (this will limit background activity for all applications)
  • 📱 On Samsung: Settings → Device care → Battery → Background restrictions
  • 📱 On Google Pixel: Settings → Battery → Adaptive battery (turn this switch on)
Brand Optimal battery mode Effect for performance
Xiaomi/Redmi Battery saving +40% free RAM
Samsung Medium optimization +30% startup speed
Google Pixel Adaptive battery +25% operating time
Realme/Oppo Super savings +50% free RAM (but notification delays are possible)
⚠️ Attention: On devices with ColorOS (Realme/Oppo), aggressive battery optimization may block push notifications in instant messengers. For important applications (WhatsApp, Telegram), add them to the list of exceptions in the battery settings.

3. Cleaning cache and unnecessary files without apps

App cache and system temporary files can take up gigabytes of memory, slowing down the device. Unlike “cleaners” from the Play Market, built-in Android tools clean up garbage safely, without deleting important data.

Cleaning methods:

  • 🧹 Cache of individual applications:
    1. Go to Settings → Applications
    2. Select an application (for example, Facebook or Instagram)
    3. Tap Storage → Clear cache

    For mass clearing, use Settings → Storage → Free up space

  • 🧹 System cache instead (requires reboot): 
    1. Turn off your phone.

    2. Press the power button + volume up
    

    3. In the recovery menu, select "Wipe cache partition"
    

    4. Confirm and reboot

    Note: On new devices Samsung this method may not work - use Settings → Maintenance devices → Storage → Clean
  • 🧹 APK files: Delete unused installation files in Settings → Storage → Files → APK
    • 💡

    After cleaning cache, the first launches of applications may be slower - this is normal. The system will restore the necessary temporary files in 1-2 uses.

    For devices with MIUI (Xiaomi) there is an additional tool:

    1. Open the application Security
    2. Select Cleaning → Deep cleaning
    3. Click Clean up unnecessary files (this will remove residual files of deleted applications)

    4. Optimizing graphics and screen resolution

    Modern smartphones often work with resolution FHD+ or QHD+, which is beautiful, but requires more resources. If super-sharpness of the screen is not critical for you, you can lower the resolution to speed up the interface.

    How to change the resolution:

    • 📺 On Samsung:
      1. Settings → Display → Screen resolution
      2. Select HD+ instead of FHD+ or WQHD+
    • 📺 On Xiaomi/POCO/Redmi:
      1. Settings → Screen → Screen resolution
      2. Select Auto or manually set 720p
  • 📺 On Google Pixel:
    1. Settings → Screen → Screen size
    2. Select Standard instead Large or Huge

Additional graphics settings (only for devices with support):

  • 🎮 Disable font smoothing: Settings → Display → Font style → Turn off anti-aliasing (saves up to 5% of CPU time)
  • 🎮 Reduce the screen refresh rate to 60 Hz instead of 90/120/144 Hz (to OnePlus, Realme, ASUS ROG Phone)
  • 🎮 Disable wallpaper animation: Settings → Wallpaper → Dynamic wallpaper → Turn off
    • What happens if you set the resolution too low?

    On screens with a pixel density above 400 PPI (most modern smartphones), lowering the resolution below HD+ (720p) will lead to a noticeable deterioration in text clarity. The optimal balance for most devices is FHD+ (1080p) at 60 Hz.

    5. Transfer applications to a memory card (the correct way)

    Lack of internal memory is one of the main reasons for slowdowns. Many people think that transferring applications to microSD will solve the problem, but they do it incorrectly:

    Important: The memory card must be class UHS-I (U3) or higher with a recording speed of at least 90 MB/s. Cheap cards will only worsen the brakes.

    • 📱 Method 1: Built-in Android function (does not work on all devices):
      1. Settings → Applications
      2. Select application → Storage
      3. If available option Change — select Memory card
    Limitation: Not all applications support transfer
  • 📱 Method 2: Formatting the card as internal memory (recommended):
    1. Insert a memory card
    2. Settings → Storage → SD card → Configure → Internal memory
    3. Follow the instructions (the data on the card will deleted!)
    4. After formatting, select Transfer data now
    Advantage: Applications will be installed on the card according to default
    • ⚠️ Attention: On devices Samsung c One UI 5.0+ the function of formatting the card as internal memory can be disabled. In this case, use only the first method or consider the option of clearing the internal memory.

    For devices without a memory card slot (Google Pixel 6/7/8, iPhone-like Android), the only way out is regular cleaning or using cloud storage.

    Many popular applications have become overly heavy. For example, Facebook takes more 300 MB and constantly runs in the background. web alternatives can significantly speed up the phone.

    Heavy application Light alternative Memory saving Saving batteries
    Facebook Facebook Lite / Hermit Lite Browser 250 MB up to 40%
    Instagram Instagram Lite / Web version 180 MB up to 35%
    Chrome Brave / Firefox Lite 120 MB up to 25%
    WhatsApp WhatsApp Business (lighter than the main one) 50 MB up to 15%
    YouTube NewPipe / SkyTube 200 MB up to 50%

    How to install light versions:

    1. For Facebook Lite i Instagram Lite:
      1. Open Play Market
      2. In the search, enter the name + "Lite"
      3. Install the official application from Meta
    2. For NewPipe (YouTube alternative):
      1. Download APK from the official website newpipe.net
      2. Allow installation from unknown sources in Settings → Security
      3. Install file
    💡

    Replacing 3-4 heavy applications with light versions can free up up to 1 GB of RAM and increase battery life by 15-20%.

    7. functions

    Android runs many background services that are rarely used, but constantly consume resources. Disabling them can give a performance boost of up to 20%.

    Which services can be safely disabled:

    • 📡 Wi-Fi Direct / Hotspot (if you don't use): Settings → Connections → Wi-Fi → Advanced → Disable Wi-Fi Direct
    • 📡 NFC (if you do not use contactless payment): Settings → Connections → NFC and payments → Disable
    • 📡 Bluetooth scanning: Settings → Location → Scanning → Disable Bluetooth scanning
    • 📡 Auto-sync (for non-critical accounts): Settings → Accounts → Select account → Disable synchronization
    • 📡 Diagnostic data: Settings → Google → Google services → Diagnostics → Disable

    For devices Samsung additional:

    • 📱 Disable Bixby: Settings → Additional features → Bixby → Disable
    • 📱 Disable Edge Panels: Settings → Display → Edge screen → Panels → Disable

    For devices Xiaomi:

    • 📱 Disable Mi Video and Mi Music (if not used): Settings → Applications → Select application → Disable
    • 📱 Disable Second Space (if you do not need a second desktop): Settings → Accessibility → Second Space → Disable
    ⚠️ Attention: On some devices Huawei disabling system services can lead to malfunctions of EMUI. Before disabling, check reviews about a specific model on forums like w3bsit3-dns.com.

    8. Resetting to factory settings as a last resort

    If all the previous methods did not help, the last chance is to return the phone to its previous speed. hard reset (reset to factory settings). This will delete all data from the device, so first:

    • 🔄 Make a backup:
      1. Photo/video: download to Google Photo or copy to PC
      2. Contacts: export to Settings → Google → Backup → Contacts
      3. Messages: use SMS Backup & Restore from Play Market
      4. Applications: the list of installed apps can be saved through Settings → System → Backup
  • 🔄 Remember or take a photo of the settings:
    • Wi-Fi passwords (Settings → Wi-Fi → Saved networks)
    • Screen settings (brightness, timeout)
    • Sound profiles

      • How to reset:

      1. Open Settings → System → Reset settings
      2. Select Delete all data (reset to factory settings)
      3. Confirm the action (you may need to enter a pattern or password)
      4. Wait for completion (takes 5-15 minutes)

      After reset:

      • 📱 Do not restore all the data at once - this will boot the system again
      • 📱 Install only the most necessary applications
      • 📱 Set up background activity restrictions (see section 2) immediately after the first boot
      💡

      Resetting to factory settings gives the maximum performance increase, but the effect is maintained only with correct subsequent settings. Without optimization, after 2-3 months the brakes may return.

      FAQ: Frequently asked questions about speeding up Android

      Is it possible to overclock the processor on Android without root?

      No, CPU overclocking (increasing the clock frequency) without root access is impossible. All methods in this article are aimed at optimizing existing resources, and not at physically increasing power. On some devices (for example, ASUS ROG Phone) there is. built-in performance modes, but they do not overclock the processor, but optimize the allocation of resources.

      Why do applications run slower after clearing the cache?

      This is normal behavior. The cache contains temporary files that speed up data loading After clearing, applications have to load data again, which takes longer the first time. startup. The effect is temporary - after 1-2 uses the speed will return to normal. The exception is games: their cache can weigh several gigabytes, and re-downloading will take time.

      Will these methods have an effect on flagship phones?

      Yes, but less noticeable on devices with Snapdragon 8 Gen 2/3 or Dimensity 9000+ the performance increase will be 10-15%, while on budget smartphones (for example, Redmi 9A s Helio G25) the acceleration can reach 50%. The main effect on flagships is an increase in battery life by optimizing background activity.

      Can these settings damage the phone?

      No, all the methods described are safe and reversible. They do not affect system files and do not change the firmware. The only risk is disabling important system services (for example Google Play Services), which can lead to unstable operation. All critical services are protected from shutdown at the Android level.

      How often should these procedures be repeated?

      Recommended frequency:

      • Cache clearing - once every 1-2 months
      • Checking background activity - once every 3 months
      • Updating light versions of applications - as updates are released
      • Resetting to factory settings - no more than once every 6-12 months

      On devices with 6+ GB of RAM, the interval can be increased by 1.5-2 times.