u/Appropriate_Storm458

I currently have three old Eero WiFi 5 and they have been working well. We recently switched and updated our broadband connection.
Am I correct in thinking that the difference in results between the speed test on the Eero vs my iPhone is because of the speed of the Eero 5? Would I notice much of a difference by upgrading for normal usage eg streaming and browsing?
I am also considering installing some more Ethernet ports which switches work well with Eero?
Thanks for your help of a network novice!