Wifi, wifi video surveillance, correct distribution?

Question

WiFi

Good afternoon, I really need a hint, please don’t throw tomatoes at anyone, the question is simple)
There is a wireless network, a room of 200kV - Ubiquiti UniFi AP AC Pro equipment - 2pcs (channel width 2.4GHz (40), 5GHz (80) then everything comes to unifi switch 8 poe, then into Mikrotik 951, an IP DVR is inserted into the same Mikrotik.6 HikVision DS-2CD2523G0-IW cameras are connected to the same network via wifi (all cloud services are disabled on the cameras).Wired Internet 100Mbps comes to Mikrotik.
As soon as I turn on the cameras + DVR (it is connected via a cable to Mikrotik), then wifi gets very clogged, it’s trite even from the phone, the YouTube video does not load well, I turn off the cameras and everything is super. If you just turn off the cameras and measure the speed for example speedtest (85-90 Mbps via Wi-Fi), if you turn on the cameras, then immediately 3-4 Mbps ..
How to switch correctly?
Leave one plate clean for Wi-Fi?
The second plate only for video surveillance? thus we will separate wi-fi and video surveillance.
Thanks for understanding!

Answer 1

How to commute with?

Humble yourself and pull the cable.
If you decide to leave your shitty version, then check the bitrate of the cameras. No mjpeg, cbr bitrate 2Mbps. On each td, create a separate ssid for cameras so that they do not switch between them. Accordingly, after that, balance 3 + 3 cameras with your hands.

Answer 2

Copper cable is the solution, everything else is from the evil one. Well, or use radio solutions outside the wifi range.

Answer 3

Too high density of the packet flow to the air. I think if you cling to 5GHz, then the Internet speed is normal, and the problem is typical only for 2.4 GHz. I think the problem can be solved by creating a separate network, at a separate frequency with separate physical channels (separate antennas if a multi-antenna module).
Camera traffic should be physically separated from Internet traffic as much as possible, it is also possible to use directional antennas (with the narrowest radiation pattern).