eufy Security Wireless Video Doorbell newbie questions

I’ve just received and installed eufy Security Wireless Video Doorbell. A couple of things puzzle me.

I have connected successfully to Alexa but find that it is very annoying to have them all echoing around the house “someone has rung the doorbell”. I’d much rather them just make a doorbell sound. Is this possible?

Also is there a difference in response time on my phone if the Homebase is connected to Wifi or Ethernet?
I have the home base right next to a Mesh Hub. I’ve tried both wifi and ethernet. I get the impression that there is much less lag when the homebase is connected via ethernet.