Retirement tax questions

I live in Connecticut and it looks like the mail would be going to Kovington, KY. I'm not normally the type of person who is in a rush and I know the IRS doesn't necessarily set any speed records but I just finished getting the paperwork together and figured I would ask to see which might move things along faster, fax or mail, because my return this year I was supposed to go toward in New house for my family and I should have never depended on it being here when originally assumed it would have been. I won't make that mistake again.