I would like to use
newObj = scene.addObject(obj)
in order to get a handle on the new object to modify its properties, however when I add that line of code and export it to Windows 64 bit, severe lag is generated even though it runs fine in blender player. When I use the addObject actuator and export it, no such lag occurs.
Does anyone know why this happens? Is there an easy work-around for this problem?