I've lost count of the number of times I've complained about the quality of the ATIS! Not all the time, I hasten to add, just when someone hasn't been taking the ATIS recording task seriously.
The supervisor should attempt to copy it down him/herself every time an assistant re-records the tape. It is supposed to be an information system, not a stupid speed-talking contest.
If you find it's being read too fast, get them to read it out to you at dication speed - or change the tape. If it's really bad, talk to the SFSO.
Speak fast = speak twice!