We are facing a huge performance hit in linux machine while using basex, its working smoothly in windows machine 

While executing any query : 
-> windows machine takes around 4 to 15 millisec
-> On linux machine same query takes around 120 to 150 millisec

During some application operation execution we are selecting/inserting the xml nodes in different docs in basex and there are around 13000 xml nodes which needs to be selected/imported in this operation.

Linux => rhel or cents of 

Based on the logs of query execution we have analysed and found : 
Windows worst case(15 ms) query execution time => 13000 x 15ms => 65000ms => 65 sec = around 1 min
Linux average case(130 ms(120+150)/2) query execution time => 13000 x 130ms => 1690000ms => 1690 sec = around 28 min to execute same operation

we are using BaseX941.zip ZIP Package

eg queries :

for $alias in collection(mydbname)//* where (($alias/@id="4249f0807da81000a734525400c54430018") and ($alias/@deleted="false") and ($alias/object-type/@uid="com.MyObjectName")) return $alias

or

insert node <myxmlNode>…….</myxmlNode> into (for $alias in doc('MyDoc') return $alias)

I am using basex with java

code to get the result

System.setProperty("user.home", db_dir);
BaseXXQDataSource ds = new BaseXXQDataSource();
ds.setProperty("serverName", "localhost");
ds.setProperty("port", "1984");
ds.setProperty("databaseName", "mydbname");
XQConnection2 connection = (XQConnection2) ds.getConnection("admin",
"myDbPassword");
XQStaticContext xqsc = connection.getStaticContext();
xqsc.setScrollability(XQConstants.SCROLLTYPE_SCROLLABLE);
connection.setStaticContext(xqsc);
XQPreparedExpression expr = connection.prepareExpression(query);
XQResultSequence result = expr.executeQuery();
XQSequence scrollableCopy = connection.createSequence(result);

getting result from the xqsequnce for 13000 queries is taking another 10 mins
Node node = scrollableCopy.getNode()

we have tried to increase xms and xmx in basexserver but it didn't help, Can you please suggest any solution/configuration required for linux machine to increase the performance.