Ezviz maybe?
WiFi is cool, but each camera is basically a little WiFi jammer tbh considering you are streaming, lots and lots of packets flooding your airways. WiFi only has so much capacity per channel, if you flood it ALL devices suffer.
Thus, for streaming ( CCTV, TVs, Consoles, etc ) I prefer to do a wired route if possible. WiFi = last resort.
On a more serious note, it's easy to knock your cameras for a loop, just turn on your microwave, same frequency, so with a strong enough transmitter, your security can be compromised a bit easier ( & from a distance ) than if it was a physical wire run.