No, cross-posting is not acceptable and is generally frowned upon even if a delay is involved.

Stack Exchange already has an answer for this [Is cross-posting a question on multiple Stack Exchange sites permitted if the question is on-topic for each site?][1] and the answer is a resounding "NO": 

>Ask the question on the site you think is most applicable. **If, like in this case, it does not get any answer, ask a moderator to migrate the question, or alternatively, delete it and re-ask it.**


If there's one thing that is disliked, it is duplicating effort across the community.  It is considered rude to ask one group of people, then ask another group entirely.  Migrating the question allows  effort to happen on one site and then be *moved* to the other site.

  [1]: https://meta.stackexchange.com/questions/64068/is-cross-posting-a-question-on-multiple-stack-exchange-sites-permitted-if-the-qu