Android Phone Slow? 12 Ways to Make It Fast Again

By Ammar Aslam · Updated September 29, 2026 · 3 min read

When your Android phone was new, it felt fast. Now apps take ages to open, the keyboard lags and the camera freezes. Phones slow down for predictable reasons, and most can be fixed without buying a new one.

1. Restart your phone

Restarting clears memory and stops misbehaving background processes. If you haven't restarted in weeks, do it now.

2. Free up storage

Phones slow down noticeably when storage is nearly full. Aim to keep at least 10–15% free. Our Android storage guide shows how.

3. Update Android and apps

Updates fix bugs and improve performance. Check Settings → System → Software update and update apps in the Play Store.

4. Remove apps you don't use

Every installed app can run background services. Uninstall apps you haven't opened in months. For pre-installed apps you can't remove, choose Disable in app settings.

5. Use lighter apps

Some popular apps offer "Lite" versions or web versions that use less memory, which helps older phones.

6. Reduce widgets and live wallpapers

Animated wallpapers and many widgets constantly use processing power. Use a simple static wallpaper and remove unused widgets.

7. Speed up animations

In Developer options, set Window animation scale, Transition animation scale and Animator duration scale to 0.5x. The phone feels snappier instantly.

8. Clear cache of heavy apps

Go to Settings → Apps, choose apps like browsers or social media, open Storage and tap Clear cache.

9. Limit background apps

Set rarely used apps to Restricted battery usage so they can't run in the background. This helps both speed and battery; see our battery guide.

10. Check your launcher and cleaner apps

Third-party "cleaner", "booster" and "RAM saver" apps often make phones slower by running constantly and showing ads. Uninstall them.

11. Keep it cool

Phones reduce speed when hot. Remove thick cases during heavy use and avoid gaming while charging. See phone overheating fixes.

12. Factory reset as a last resort

If nothing helps, a factory reset after backing up often makes an old phone feel new.

Biggest wins: free storage, remove unused apps, uninstall cleaner apps, and reduce animation scale.

Find out why your phone is slow

Before trying every fix, spend five minutes identifying the likely cause:

Symptom	Likely cause
Slow everywhere, storage almost full	Low storage
Slow after installing an app	That app, or ads/malware
Slow and hot	Heat throttling or heavy background activity
Slow after a big update	Temporary optimisation (wait 1–2 days)
Slow for years, gradually	Ageing hardware, too many apps, low RAM
Keyboard lag only	Keyboard app cache or settings

If slowness began suddenly with pop-ups or odd behaviour, test in Safe Mode first.

Habits that keep a phone fast

Review apps every few months and remove ones you haven't used.
Keep WhatsApp media auto-download limited so storage doesn't fill up silently.
Restart the phone at least once a week.
Install updates for Android and apps promptly.
Avoid "cleaner", "booster" and "battery saver" apps from the Play Store.
Use a case that doesn't trap heat, especially for gaming.

When it's time for a new phone

If your phone no longer gets security updates, has 3 GB of RAM or less, and still struggles after a factory reset, upgrading may be the practical choice. When buying, prioritise enough storage (128 GB or more), at least 6–8 GB RAM, and a manufacturer that promises several years of updates. Transfer your data carefully using our phone transfer guide.

Frequently asked questions

Do task killer apps help?

No. Android manages memory itself; force-closing apps repeatedly can actually use more battery and slow things down.

How much RAM does a phone need?

For smooth everyday use today, 6–8 GB is comfortable. Phones with 3–4 GB struggle with heavy apps.

Ammar Aslam
Ammar writes clear, practical tech guides that help everyday users fix problems, stay safe online and get more from their devices.