02-16-2021, 02:22 PM
Synology DVA3221 comes with a PCIe graphics card inside. This allows this system to detect people. This makes smart surveillance possible. You will also be streaming footage via LAN either way. So performance-wise it should work similarly to DS920+. Using internal SSD instead of HDDs would speed up the IOPS. It would be much quicker and smoother to access the files including surveillance.I would recommend to check system resource monitor on your NAS and pinpoint where is the slowest link this chain. Maybe you are recording 4K and your monitor, Wifi or PC needs transcoding to display the footage. But SSD would certainly speed things up either way (not NVMe cache).I hope this helps.