Some SD cards may affect the stability of data transfer due to quality issues or low transfer speed levels. So compared with using the phone without inserting the SD card, there will be a slow boot or slow shutdown.
Solution:
It is recommended that you try to take out the SD card or replace the SD card of Class10/U1/U2/U3 level and use it again to confirm whether the problem can be solved.
If the above solutions do not solve your problem, it is recommended to bring the purchase certificate and go to the realme customer service center for testing.
Note: When replacing the app card, please note that the realme phone supports SD cards in FAT32/exFAT/NTFS format.