iOS 10.1 update may slow down the speed of your iPhone in case of 32-bit framework app and this is done in a bid to push developers to update their apps with 64-bit architecture. If you are running any app with 32-bit architecture the update to iOS 10.1 may slow down and message instantly pops up stating – “(App Name) may slow down your iPhone” and “The developer of this app needs to update it to improve its compatibility.”
Update Error with iOS 10
From June 2015 Apple stopped accepting any updates of 32-bit apps which keeps lot of Apple User out of the loop but the problem may still persist for users with 32-bit apps. In case you see the warning of the app slowing the device it might be due to abandoned or non-updated app. The message for the first time was seen with Touch Arcade’s iOS app and is one of the best apps to check the price drops for iOS games. The app was not further updated and fell out of Apple’s regulation and due to this the warning message was seen. The app however can still be use to see if there is a discount in your favorite game although it has not been updated for long.
No updates but slow speed of Apple Phones
There are many apps and games which has not been updated and still run on 32-bit architecture but they continue to work despite all of it. These are the apps that are actually affected by this and as people still continue to use the outdated apps, their Apple phone might see lag in performance and slow down of speed. With the new line of Apple device and iOS 10.1 it is to move completely to 64-bit core and apps with such architecture will not delay the speed despite updating the OS version.
Conclusion
The message however comes with a probability and might not affect the phone if you run the 32-bit architecture all the time. It is just a warning message but not compulsory that all the people are affected by such apps. The warning message however might be an indication of a future problem and a possibility that in near future Apple will not support any app with 32-bit apps or the apps will not be compatible with iOS device.