Buffering, IP camera

This system I am working on, Security camera system, 5 years now.
My job, install system, maintenance on system, configure too

Modem > Cradle > switch > IP cameras and DVR and Client View Station (CVS)

My focus in the CVS.
Currently they backup, send data to cloud then CVS receives data from cloud, this way the camera is not loaded down...sending data to multiple locations .

I understand the backup to cloud, DVR could fail
There is much data being sent to cloud and back to CVS

Buffer the Camera data on ?? raspberry ? only need 10-20 seconds of camera data. Have the CVS pull data locally .

Other then having another piece of equipment, am I missing something ?
Thanks


https://cradlepoint.com/sites/defaul...tart_guide.pdf