It is slow in manual mode when using "clarity" (it's ok) and randomly in AUTO mode (in AUTO the clarity option is grey, can't be change, no flash using) . Sometimes from the first shot, simetimes every few shots, sometimes several shots in a row. The screen is black and the message "storing" is displayed. This takes about 2 seconds. The light is then red. The card used is SAMSUNG Pro Plus SDXC 256GB (UHS-I / U3, V30).