A number of users are reporting that their iDevice feels slow or sluggish after upgrading to iOS 9 update. If you’ve just upgraded to iOS 9 update, then you should ideally give it a few hours or a day for indexing and to complete other background activities. But if the sluggishness or slow issues continues after a day or two then here are some tips that you can try to speed up your device.
Like all tech problems, Force Restart is not harm in starting off by force restarting your iPhone, iPad or iPod touch to see it helps. Hold down the Power button and the Home button at the same time for at least ten seconds, until the screen goes black and Apple logo appears.
Reduce Motion Effects
iOS includes a number of animations and motion related effects like parallax that are not very important, especially if you’re facing performance issues or noticing slow on your device. You can disable these motion effects by going to Settings > General > Accessibility > Reduce Motion and Turn on the toggle.
The transparency and blur are useful to convey depth, but can consume battery and CPU cycles, so here’s how to reduce the transparency in Notification Center, the Dock, Keyboard and a number of other places: Open the Settings app on your iPhone or iPad, and navigate to General > Accessibility. Scroll down and tap on Increase Contrast. Tap on the Reduce Transparency toggle to enable it.
Background App Refresh
Background App Refresh is a great iOS feature, but it’s don’t need for every app. Multitasking features in iOS allows apps fetch content in the background. It can have an impact on performance as it is spawning threads to fetch the latest content for several apps. To disable Background App Refresh feature, go to Settings > General > Background App Refresh > and Disable it for apps like Facebook or other apps that don’t need to be updated all the time.
Spotlight helps you to search a lot of types of content like Applications, Contacts, Music, Podcasts, Mails, Events etc., when you might use it only for contacts, applications, and music. It means that there would be overheads to index content on your device. So un-check the apps you don’t want to search. You can edit this by going to Settings > General > Spotlight Search.
You may have noticed that iOS 9 suggests apps, people, locations, and more when you do search, even before you type. This new iOS 9 feature called Siri Suggestions. If you’re facing the performance problem after upgrading to iOS 9 then this could be one of the features that could be encourage to the problem.You can disable it by going to Settings > General > Spotlight Search and tapping on the Siri Suggestions toggle to disable it.
Restore iPhone, iPad or iPod touch as New
This is not ideal but you can try this also as the last resort. If you’ve setup your device by restoring from pre-taken backup then the battery life problems could be due to some issue with the backup. Try to restore your iPhone (Settings > General > Reset > Erase All Content And Settings) and set it up as a new iPhone (not from the backup). But before you erase all the contents and settings, take a backup of your photos and videos using Dropbox or Google+ (Not a full backup using iTunes or iCloud).