So I have about 30 Cameras I want to run on my instance. Step by step all of them will record their videos on a local sd card and I will only watch the stream over HA (no hardware nvr). How can I set this up so my phone/laptop will not struggle at all loading these streams?

Right now I am playing them using onvif and or fmpeg and all of my hardware starts to lag heavily when I open the camera sites.

The streams are split up over 3 pages so it's 13/10/7 Streams each.