The Xiaomi Smart Camera C700 is equipped with an 8-megapixel ultra-clear recording feature, which can place significant demands on the decoding capabilities of phones. If you are using an older phone with limited CPU processing power, you can experience lag when attempting to view these high-definition videos.
To improve playback performance, consider switching to standard definition mode within the Mi Home/Xiaomi Home APP settings. This mode requires less processing power and can help eliminate lag, allowing for smoother playback of your surveillance footage.