If you only have 4 to 16 cameras and don't need integrated door locks or time-clocks, Lite is your best friend.
IVMS-4200 Lite Exclusive: The Streamlined Solution for Efficient Video Management ivms4200 lite exclusive
The iVMS-4200 Lite is a scaled-down version of the standard iVMS-4200 software. It is engineered to provide a lightweight footprint on your PC’s CPU and RAM while maintaining the essential tools needed to monitor Hikvision devices. If you only have 4 to 16 cameras