Afaik no. Wc3 optimizer mostly enhances the script. The above mentioned Widgetizer transforms the editor object data to slks, the original format the game reads on map loading. They are a lot faster and inited altogether. Cons are that the editor is not laid out to handle map-specific slks and the Widgetizer is very slow. Furthermore, not everything you may create using the editor can be converted, more precisely there are no fields for level/variation 5 data and above (used by doodads, abilities and upgrades). Strings are stored in txt files that are normally language-dependent. So those get overshadowed and are now unified. Finally, if you do not want to kick out standard objects, they have to be integrated into the new imported data as well, which boosts file size quite a bit (dunno, maybe they are optimized before, null values do not actually have to be stated explicitely, the original files are bigger than they need to be).