u/FunReality4048

Currently my eero network is connected via Wi-Fi. I get very good speeds close to gateway eero but much slower by other units. The gateway is a pro 6 and then I have a mix of pro 6 and 5. The gateway is connected to a switch in the loft but other Eeros are not wired to the switch yet. The gateway is not that close to router but is of course wired to it. I want to add another eero next to router. This will then be wired to original gateway. Does the connection to the switch have to come from gateway eero or can the original gateway remain as the supply to switch.
Hope that makes sense
Currently router - gateway - switch
New router- new gateway - old gateway - switch
Will this work ok?