My Xiaomi mobile phone sometimes becomes particularly stuck, and it takes nearly a minute to open the text message. What is the reason? Open other programs when you get stuck.

Android phones are like this. When your system runs for a period of time, it will produce certain system garbage, including some data set by mobile phones, and data bred by downloading and installing apps. Even if the app is deleted, there will be system garbage residue! Usually just restore the factory settings and erase the data. Remember to back up important data such as address book before clearing it to avoid losses! I hope I can help you!