Android Lag Fix – 9+ Easy Ways to Speed up Smartphones

I remember when my phone used to fly—apps opened instantly, scrolling was smooth, and gaming was a breeze. But then, after 6–8 months, everything changed. Suddenly, my phone felt sluggish, lagging even when switching between apps. Typing became slow, my screen would freeze randomly, and simple tasks felt like a struggle.

At first, I thought it was normal aging. Turns out, it wasn’t. After weeks of digging through forums, testing different settings, and tweaking my phone, I finally figured out why Android phones slow down and, more importantly, how to fix it.

And here’s the best part: These fixes actually work, even on budget Android devices.

Why Do Android Phones Start Lagging?

Every Android phone—whether flagship or budget—slows down over time. But why? Here’s what I found:

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emmc and ufs storage by samsung with fixingpro

Most people think filling up storage causes lag, but the truth is, it’s not just about space—it’s about how your storage works.

👉 eMMC vs. UFS Storage: Budget devices use eMMC storage, which slows down as it ages due to read/write cycles. Flagship phones use UFS storage, which lasts longer and is faster. (This is why older budget phones lag more than older flagship phones.)

Fix: Keep at least 15–20% of storage free to allow smooth operation. Move large files to an SD card or cloud storage.

Ever notice how a phone is fast right after a restart but slows down after a few days? That’s because of background processes.

👉 Android doesn’t truly ‘close’ apps—it keeps many running in the background, consuming CPU & RAM.

Limit Background Process Android SS

Fix:

  • Enable Developer OptionsLimit Background Processes to ‘At most 2 processes.’
  • Use Greenify (a free app) to hibernate background apps without rooting.

Phones have built-in safety mechanisms to reduce performance when they overheat. High temperature = automatic lag.

👉 Flagship phones handle heat better due to vapor chambers. Budget phones throttle performance aggressively to prevent overheating.

Fix:

  • Remove your phone case while gaming or using heavy apps.
  • Keep your phone out of direct sunlight.
  • Close background apps before gaming.

I used to love using third-party launchers and modded apps, but here’s what I found out:

google searched for the mod apps

👉 Modded apps & launchers create bloated cache files that slow down the system. Some even override default CPU settings, making your phone work harder than necessary.

Fix: If you use a custom launcher, switch to your phone’s stock launcher for a speed boost. Uninstall modded apps and use optimized alternatives.


lets go

9 Proven Ways to Fix Android Lag & Make It Fast Again

1. Free Up Storage (More Than Just Deleting Files)

storage settings screenshot with all the junk and storage
storage setting with duplicate files junk screenshot
  • Move media files to Google Photos or an SD card.
  • Delete WhatsApp forwarded files (they eat up space).
  • Use Files by Google to remove junk files & duplicates.

2. Restart Regularly to Kill Cache Buildup

image of android in hand with power off menu and restart emergency
  • Restarting clears temporary cache files that slow down performance.
  • Studies show restarting 2–3 times per week improves speed by 18–23%.

3. Optimize RAM Usage

screenshot of battery optimization settings for any app cropped menu
  • Go to Developer Options → Enable Background Process Limit to 2.
  • Use RAM boosters cautiously—many slow down devices instead.

4. Keep Your Battery Above 40%

  • Android reduces CPU speed when the battery is below 20% to save power.
  • Charge your phone before it drops below 30% for stable performance.

5. Uninstall Bloatware & Unused Apps

cropped-Joker-Malware-Apps.webp
  • Every unused app slows down the system, even if you never open it.
  • Go to Settings > Apps > Uninstall unused apps.
  • Use ADB commands to remove bloatware if your phone doesn’t allow uninstalling.

6. Block Unnecessary Notifications

too many notifications screenshot
  • Push notifications keep apps running in the background.
  • Turn off unnecessary notifications in Settings > Apps > Notifications.

7. Switch to a Single SIM (If Using Dual SIMs)

image of sim card tray with sd card and sim aside
  • Phones with Dual SIMs scan networks continuously, causing extra background processes.
  • If possible, disable the second SIM to reduce CPU load.

8. Limit Background Apps Without Rooting

screenshot of samsung background or recent apps menu
  • Go to Settings > Battery > Background Restriction.
  • Use Greenify to hibernate apps without needing root.

9. Consider a Factory Reset as a Last Resort

  • A full reset removes hidden cache files and restores factory speed.
  • Backup data firstSettings > System > Reset.

Beyond Common Sense: The Secrets Nobody Talks About

1. Storage Type Matters More Than Storage Space

storage settings screenshot with all the junk and storage

Most people think having "free space" is enough, but storage speed (UFS vs. eMMC) is the real game-changer. Budget phones using eMMC storage degrade faster, causing long-term lag.

👉 Hidden Fix: If your phone has eMMC storage, use ADB Commands to disable unnecessary system apps that slow down performance.


2. Wi-Fi & Bluetooth Drain Performance Even When Not in Use

Your phone continuously scans for networks, consuming RAM & CPU power.

image of android with wifi turned on and connected with wifi calling and laptop in the background

👉 Hidden Fix: Turn OFF Wi-Fi & Bluetooth Scanning in Settings > Location > Scanning.


3. Google Assistant Slows Down Your Phone (Even If You Don’t Use It)

  • Voice recognition runs in the background 24/7.
  • Go to Google App > Settings > Voice > Disable ‘Hey Google’ to save resources.

Conclusion: How Fast Is Your Phone Now?

Imagine this—you’re trying to send an important message, load up a quick map, or just scroll through social media, and your phone stutters like it's stuck in slow motion. It’s frustrating, right? I know that feeling all too well. But the good news? You don’t need a new phone—you just need to unlock its real potential.

You now have every fix in your hands, from hidden CPU throttling tricks to beyond-common-sense solutions that no one talks about. The real question is—which one will make the biggest difference for your device?

Now, here’s what I want you to do: ✔ Try out at least one fix from this guide. ✔ Comment below which one made the biggest impact! ✔ If you’ve got a hidden trick of your own, share it! I personally go through every comment.

And if this helped you, share it with a friend who's always complaining about their laggy phone—because we all know one! 🚀

I just showed you the exact ways to make your Android fast again! Now it’s your turn—which of these worked best for you? Or do you have another hidden trick I didn’t mention? Drop a comment below—I reply to every single one! 🚀

Kunal
Kunalhttps://fixing-pro.com/author/kunal-kashyap/
Kunal Kashyap, the tech guru behind FixItKunal.com, Learn and Solve with Backdroid (Youtube Channel), simplifies complex tech issues with clear and user-friendly guides. With expertise in Android, iOS, and more, his tutorials empower users to tackle tech problems confidently. Kunal's engaging style makes technology accessible to both beginners and experts. Beyond tech, he explores psychology and keeps up with tech and business trends awarded by the Government and Namita Thapar.

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7 Comments

  1. This was very helpful and clearly explained.Thank you so much Kunal I will follow the steps to ensure my Android functions perfectly.

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