We recently installed a correctional facility with Video Insight and Advidia (HIKvision) cameras. We needed several 50" static displays that would display the same 8-16 cameras 24/7. No operator involvement, just observation. We purchased the newest Intel NUC micro computers to drive the viewing workstations with I-5 processors and Intel HD graphics. Really sharp little devices and will bolt on the back of a monitor. What we discovered was that the Video Insight Monitor Station client software was taxing the processor at nearly 100% to live display 16 cameras in a 4x4 grid.
On a whim, I installed the free IVMS-4200 and direct streamed the 16 Advidia cameras, bypassing the VI server. To my pleasant surprise/shock, the IVMS displayed the cameras at a much more fluid frame rate, and the processor utilization was a whopping 4%. We are using VI for the servers and the operators that need to review/archive video, but for all the live displays we are going with the IVMS-4200.