I tried but it did not help. It took 1 minute 45 seconds to load. Bellow is the new config for vmoptions.
I have iCore7 and 16GB RAM on my machine. Machine is not the problem.
-XX:MaxPermSize=128m
-XX:MinHeapFreeRatio=40
-XX:MaxHeapFreeRatio=70
-Dsoapui.jxbrowser.disable=true
-Dtest.history.disabled=true
-Xms128m
-Xmx8000m
-Dsoapui.properties=soapui.properties
-Dsoapui.home=C:\Program Files\SmartBear\ReadyAPI-1.8.0/bin
-Dsoapui.ext.libraries=C:\Program Files\SmartBear\ReadyAPI-1.8.0/bin/ext
-Dsoapui.ext.listeners=C:\Program Files\SmartBear\ReadyAPI-1.8.0/bin/listeners
-Dsoapui.ext.actions=C:\Program Files\SmartBear\ReadyAPI-1.8.0/bin/actions
-Dwsi.dir=C:\Program Files\SmartBear\ReadyAPI-1.8.0/wsi-test-tools
-Djava.library.path=C:\Program Files\SmartBear\ReadyAPI-1.8.0/bin
-Djava.util.Arrays.useLegacyMergeSort=true
-Dsun.net.http.allowRestrictedHeaders=true