Surveillance Reaching Time Warp Style???

I came across DIGIEVER, a company that manufactures NVRs. I got impressed about one claim in particular regarding their NVRs: "users can simultaneously monitor up to 200FPS in 1920 x 1080 pixel(Full HD) or up to 300FPS in 1280 x 720 pixel(HD) outstanding monitoring performance."

200FPS??? Is that really needed for surveillance? It seems to be more like using a sledgehammer to crack a nut! Does anyone have some experience with high speed surveillance?

Note: For those not aware of the Time Warp TV series.

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