How about Apple 13 update 15. 1 system?

Generally, the newly released system will get hot, especially in summer. However, the fever of the optimized version will be much better than that of the previous version. For example, the fever of iOS 15.4. 1 is better than that of iOS 15.4. It is basically not hot when using social apps, but slightly hot when playing games.

Similarly, the official version of iOS 15.5 also brought us surprises in terms of fever. The degree of fever is better than iOS 15.4. 1, whether using social apps or game apps.

Second, fluency.

IPhone 13 is equipped with a top-class A 15 chip, running iOS 15.5 is stress-free, and the speed of opening the APP is equivalent to that of iOS 15.4. 1 official version.

Third, endurance performance.

IOS 15.4. 1 official version uses social app for five hours, and iOS 15.5 official version uses social app for 58%. The official version of iOS 15.5 is really optimized in terms of battery life.

Fourth, signal performance, delay in receiving information.

IPhone was criticized for the delay in receiving WeChat messages. Fortunately, the official version of iOS 15.5 has optimized this. Although there is still a delay, it is much faster than iOS 15.4. 1. This may be that the official version of iOS 15.5 upgraded the baseband version, improved the network signal, and received messages more smoothly.