Apple 12pro max sends video slowly.

1 is caused by the slow writing speed of mobile phone memory. You can replace faster memory to solve it.

2. If the mobile phone is directly connected to the computer with a data cable, the file transfer is generally slow, because the baud rate of the communication port of the mobile phone is limited. Although it is a USB connection, the communication of the mobile phone is serial communication, and the speed is full. You can take out the memory card and use the card reader to transfer files, which will greatly improve the speed.