iOS 11.3 Beta 4 - Better performance on old iPhone and iPad models

Apple recently released the 4th update Public Beta for the upcoming iOS 11.3 operating system.
Although nothing is noticeable, and the only visible change for users is the return of the "iBooks" application to the old name, after being renamed "Books" in previous Beta versions, we can still see a Significant change to good performance.

Regarding, for iOS Beta tests we use a iPad mini 4. Device with modest configurations compared to versions iPad Pro existing on the market at the moment, but which runs brilliantly iOS 11.
In the previous versions of iOS 11.3 Beta we could observe a significant performance degradation and we really think it would be a good idea to make a return to iOS 11.2. We also specify the fact that the new battery resource management functions are not available on the iPad (Battery Health (Beta)), about which Apple says that they will be at the user's discretion starting with this spring's update.
The good part is that with iOS 11.3 Beta 4, the iPad mini 4 has come back to life. Applications and games runs without interruption, the interface goes fluently. It remains to be seen if there will be errors and sudden closures.