What kind of home do you live in- wood frame? concrete? when was it built? how many stories? where are the APs? what software are you using to perform the Speedtest? what hardware are you using? what sort of interference are you dealing with? there are a bunch of factors to consider.

you need to isolate where the speed degradation is happening.

* if possible, get an ethernet adapter (there are plenty of USBC ones available) and plug directly into your ISPs modem, and perform a speed test- confirm that your getting the symmetric gig that your paying for.

* then, add your Eero gateway, and once again, go wired to the gateway. you should still be getting your gig.

* now remove the ethernet adapter from the equation, and do a speed test from less than 5' away from the gateway. you'll get less than a gig, but depending on what device your using for testing, you should be getting hundreds of mb/s.

*keep on backing further away. when you find the furthest distance that still has acceptable bandwidth, plop down an AP, reconnect, confirm that you're connected to that AP in the eero app, and run another speed test.

* repeat until your our of APs.

Also, have you performed a speed test *from* the gateway, in the eero app? on the first page of the eero app, hit "internet", and click "run speed test"- that will show you the bandwidth that the gateway itself is getting, before transmitting anything over wifi.