Background operation slows down system after major upgrade
If you upgrade from iOS 12 to iOS 13, this is a large update. When the update is completed, many programs will be upgraded, and the most time-consuming is:
- Index of photos / movies
- iCloud to sync
Wait a day or two and it will be normal
Many people think that on the first day after upgrading to iOS 13, the iPhone / iPad consumes more power than before the upgrade. The main reason is that the above background operations (such as indexing) use the most system resources. In general, some programs that need to connect to the Internet also wait for users to have a WiFi connection and charge.
iOS 13 up to iOS 13.1 faster
However, if the user is using iOS 13, the background operations (such as indexing) after upgrading to iOS 13.3 do not need to be performed again, so it will not greatly affect the fluency and power consumption.
Summary: each machine is different
After upgrading from iOS 12 to iOS 13.3, you still have to wait 1-2 days for iOS 13 to do some optimizations. The time required for each device is also different. Of course, the faster the device and the less the device, the shorter the processing time will be after the upgrade! If you are already using iOS 13, upgrading to iOS 13.3 is less of a problem.