Hi, hope some of you experts can help a non-network expert with some questions!?

I have had a Netgear Orbi system for a couple of years, but with a growing number of smart home devices being added, what was very good WiFi speed (about 400 MBps with fiber speed of 500 MBps into the house), it now maxes out at about 20 MBps. No troubleshooting has availed this and I now have an Eero 6 system under shipment.

I am considering three options:

• Use the Eero system for all IoT devices and set up the Orbi system from scratch and use that for phones/tablets/computers around the house, hoping splitting the load between the networks will help and that Eero is better at dealing with many IoT devices
• The other way around, keep the IoT devices on the Orbi system and move phones/tablets/computers to the Eero system, hoping this will take sufficient load off the Orbi system to increase speed
• Remove the Orbi system completely and use the Eero system for everything

I am leaning toward the first, but fear this might cause interference? Any guidelines to help choose the way forward?

Should I go with option 1 or 3, where the IoT devices will be transferred to the Eero system, I would also really like some advice on how to do the initial setup. With the Orbi system, a dozen or so devices have been assigned static IP addresses (improves reliability or is required to set them up in Homebridge). I have been thinking I could:

• First turn off the Eero system
• Then set up the Eero system with same network name and gateway IP as the Orbi system (friends tell me this will most painlessly allow all devices to reconnect when turning on the Eero system)
• And then set IP reservations for devices that need this

Would this approach work?

Any input is greatly appreciated!