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How to speed up the Nexus 5 for fast performance

The Nexus 5 is a great phone, and upgrading it to Android Lollipop makes it greater still. Unfortunately, however, you might find that after the upgrade it feels slower rather than slicker. If that sounds like your phone, read on to discover how to speed up the Nexus 5 for fast performance.

nexus 5 homescreen apps
The Nexus 5 is a great phone, but sometimes it can feel a little slow. / © ANDROIDPIT

We know what you’re thinking. Android Lollipop is supposed to be faster. Didn’t Google go on about optimizations and new runtimes and all that stuff? And you’re right, but Google can’t test every possible combination of operating system, data and apps, and as a result updates can result in a few performance issues.

Clear the cache

Your Nexus 5 stores temporary data in two places, the app cache (for apps) and the system cache (for Android itself). If that gets messed up it can have a knock-on effect on your phone’s performance, so it’s a good idea to clean both of them. This shouldn’t affect any of your personal settings or data but it’s always a good idea to make a backup before experimenting.

To clear the app cache:

  • Go to Settings > Device > Apps > All.
  • Tap on the name of the app whose cache you want to delete.

You should now see a screen with lots of options and information. The bit we’re looking for is the button that says Clear Cache, which will appear if that app uses a cache. Make sure you tap the Clear Cache button and not the one that says Clear Data, because that - as you’d expect - clears all of the data for that application, such as user names, passwords, game progress and so on.

AndroidPIT Nexus 5 Android 5 0 Lollipop clear app cache
Clearing the app cache can give sluggish apps a kick. / © ANDROIDPIT

To clean the system cache, all you need to do is to go into Settings > Storage > Cache and clear the system cache.

Speed up animations

Animated transitions in operating systems are often there to distract you while the system loads something, but there’s no need for that on a fast device such as the Nexus 5. In system settings, go into Developer Options and turn it on if it isn’t already. Now, scroll down until you see Window Animation Scale, Transition Animation Scale and Animator Duration Scale. You can turn these options off to disable animation altogether, but cutting them to 0.5x gives you a speed boost without making Android feel weird. If you don’t notice any difference after making the changes, restart your Nexus.

Investigate potential offenders

If your Nexus is still performing more slowly than it should, the next step is to see if you can identify particular offenders. Is the slowness due to your phone, or is it app- or website-specific? No amount of messing around with your device will fix the latter two. If it appears to be app-related, uninstalling and reinstalling might make a difference.

If you’re pretty sure that it’s your phone, then the next thing to consider is the nuclear option: a full reset. This takes your phone back to factory-fresh condition and should eliminate any niggling issues that could be affecting your performance. Always make sure you’ve backed up anything important - from photos to app passwords - before getting ready to go nuclear.

Done that? Okay.

androidpit nexus 5 reset teaser
A factory reset is the nuclear option, but it often does the trick. / © AndroidPIT
  • Go into Settings and tap on Backup and Reset
  • Untick Back Up My Data, assuming you do actually have a backup
  • Tap Factory Data Reset
  • Enter your PIN or password if asked to. Tap Continue.
  • Tap on Delete All.

If that doesn’t work, there’s an even more nuclear option: the hard reset. This is another full erase, but this time it includes anything on your internal SD card too. It won’t wipe out any Android updates you’ve installed, but it gets rid of absolutely everything else. To do that:

  • From a powered off state, press the Power button to start your Nexus 5. When you see the Google logo press and hold the Volume Down key and release when the device vibrates.
  • Use the volume keys to highlight Recovery Menu and press the Power button to select. This will bring you to a screen with an Android on its back.
  • Hold the Volume Up key for 5 secs then release and a new menu will appear.
  • First off, you can use the volume keys to select Wipe Cache Partition. This will cause your phone to restart. once this is done, re-do the previous steps to get back to the same screen (the one that Wipe Cache Partition was on).
  • Highlight Wipe Data/Factory Reset and select using the Power key. Scroll down to Yes, Delete All Data and press the Power button again to select.
  • Your Nexus 5 will now wipe your data and reformat.
  • On the next screen hit the Power button to select Reboot System Now.

Have you discovered any top tips for speeding up an unhappy Nexus 5? Let us know in the comments!


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  • One DOES NOT need to NUCLEAR CRAP their Nexus 5 in order to see if the sluggishness is app-specific.
    Just reboot in SAFE MODE by keeping the "power off" button pressed when it appears.
    Safe Mode runs only the core apps of the device, disabling other 3rd party apps for as long as you are booted in the Safe Mode.
    That should help you narrow down your diagnosis.
    Restart phone normally again to get back to Normal Mode.
    If the phone is still slow, even in Safe Mode, the factory reset is your only option.
    Peace Out.

  • Smartphones are becoming a necessity in modern day life, but with so many choices, it can be hard to choose. Knowing how to speed up your smartphone will help you multitask more.

  • Not sure it's a good idea to focus this article on the Nexus 5: those tips apply to many others devices (at least running Lollilop), except for the "nuclear" one, which is manufacturer specific

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