Comment #8 on issue 971 by tu...@tudorgirba.com: Using Athens fonts is dead slow in Roassal http://code.google.com/p/moose-technology/issues/detail?id=971
That is because you did not install Athens :). It's not enough to load Athens in the image. You also need to tell Roassal to use Athens.
MooseImageSetupCommandLineHandler>>#installAthens Gofer new smalltalkhubUser: 'Pharo' project: 'Athens'; package: 'ConfigurationOfAthens'; load. (Smalltalk at: #ConfigurationOfAthens) loadVersion: '2.1'. Gofer new smalltalkhubUser: 'ObjectProfile' project: 'Roassal'; package: 'RoassalAthens'; load. ROPlatform setCurrent: 'athens'.