1. Clear Cache – The Hidden Culprit Behind a Slow Device

How to clear cache:
- Go to Settings > Apps > App Management
- Select frequently used apps like Facebook, TikTok, Zalo, Instagram, etc.
- Tap “Clear Cache” (do not clear data to avoid losing information)
Perform this task periodically every two weeks to keep your phone lightweight and significantly improve its performance.
2. Uninstall Unused Apps – Free Up “Dead Space”
Many apps are installed on a whim and then forgotten. They not only occupy storage space but also run in the background, draining battery life and slowing down your device.
How to uninstall apps:
- Go to Settings > Apps > App Management
- Sort by “Size” or “Last Used”
- Review and uninstall apps that are no longer needed
If you’re not ready to delete an app, you can also choose to “Force Stop” it to temporarily free up RAM.
3. Clean Up Duplicate Photos and Videos – Super-Effective Memory Release
Multiple photo captures, videos downloaded from social media, and automatically downloaded files from messaging apps are a major cause of memory congestion.
How to clean up duplicates:
- Use built-in cleanup tools on your device (e.g., “Cleanup” on Xiaomi, “Memory Management” on Samsung, “iPhone Storage” on iOS)
- Or download apps like Files by Google (Android) or Gemini Photos (iOS) to automatically detect and delete duplicate, blurry, or low-quality files.
Additionally, enable photo sync with Google Photos or iCloud and then delete the original photos from your device to save storage space.
4. Disable Background Apps – Prevent RAM Drain and Reduce Lag
Background apps can significantly drain battery life and reduce your phone’s performance.
How to disable background apps:
- Android: Go to Settings > Battery > Apps in Background, or Settings > Developer Options > Background Process Limit
- iPhone: Go to Settings > General > Background App Refresh and disable apps that don’t need to run in the background.

5. Restart Your Phone – A Simple Yet Effective Solution
Restarting your device helps clear temporary memory (RAM), close unnecessary background processes, and improve overall performance.
It is recommended to restart your phone at least once a week, especially if you experience unusual sluggishness.
Even a powerful phone will slow down over time if proper maintenance and periodic cleaning are neglected. Instead of rushing to upgrade or buy a new device, try these simple methods. You’ll be surprised at the noticeable improvement in speed and performance after just a few minutes of optimization.
Start today – your phone deserves a breath of fresh life!