The cause of problem :
Because HDR is based on the original photo through the software to adjust the contrast, etc., to make the overall light and dark of the photo more uniform. It needs to be processed by the software after taking the picture. When the HDR is turned on, the imaging speed will be relatively slower than in normal mode.
How to turn on HDR:
Click on the HDR icon on the top of the camera and select [HDR or HDR auto].