https://community.jboss.org/message/801704#801704 suggests:
"Would it be possible to control the compression level in shrinkwrap's ZipExporters implementation? The compression in this use case is unnecessary and slows down the deployment quite a bit."

We have to think, if it should be realised as sepearete UncompressedZipExporter, or to add general configurable compression level option to all compressing exporters.