maybe this is the same problem as in my post:
I´ve set the option tcpNoDelay="false" in the Tomcat HTTP-Connector Config. Now the Response-Time is much better.
<!-- A HTTP/1.1 Connector on port 8080 -->
You can adjust the Debug in server.log by editing the File:
Uncomment the following element and set the value to the log-level you want (e.g. INFO):
<!-- Limit JBossWS webservice category
The log4j category is 'jbossws.SAOPMessage'. When it's set to TRACE it displays the message in transit.