thanks hd0815 - the devstudio the ini file is jbdevstudio.ini:
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
-vmargs
-Xms512m
-Xmx1024m
so it might be that the lower initial memory setting you are running with is giving you a performance hit, but I wouldn't expect it to have *that* big impact.
thanks for the info.