What e-mail service are you using?

[From memory]

AT&T or Comcast are slow, and this is normal.

They provide email service, but it's not their specialty, so that's why.

Gmail is the fastest.

I am on Big pond e-mail, 60 % are arriving ok but the rest are way overdue

I asked Copilot. Check out the attached screen shot. Big Pond is slow.