Unstoppable Wallet has Blockchain settings that can be more private by selecting the From Blockchain option, although the API option is recommended. However, the impact is that when opening the wallet, it takes longer for the synchronization process.
The delayed synching occur when you have just created or imported the wallet.
Not happening because it just created or imported a wallet, the synchronization process occurs every time we open the application after completing the passcode, especially when the first time opens the day in question.
For example today I have not opened it, when I open it then it will happen. But it just happened once, when the wallet was closed, then when I entered again, the synchronization process was not repeated.
Sometimes a circular circle in the Bitcoin icon on the Unstoppable wallet which indicates the synchronization process is running does not require a long time.