batch editor seems slow even on small file

<job id="loadRealmAuctionFileJob" xmlns="http://xmlns.jcp.org/xml/ns/javaee" version="1.0">
    <step id="loadRealmAuctionFileStep">
        <batchlet ref="loadAuctionFilesBatchlet">
            <properties>
                <property name="region" value="#{partitionPlan['region']}"/>
                <property name="target" value="#{partitionPlan['target']}"/>
            </properties>
        </batchlet>
        <partition>
            <plan partitions="2">
                <properties partition="0">
                    <property name="region" value="US"/>
                    <property name="target" value="http://us.battle.net/api/wow/auction/data/"/>
                </properties>
                <properties partition="1">
                    <property name="region" value="EU"/>
                    <property name="target" value="http://eu.battle.net/api/wow/auction/data/"/>
                </properties>
            </plan>
        </partition>
    </step>
</job>