I too have this problem… not sure what to do about it either but I do know Maya’s scene size is quite a bit smaller than Cinema 4D as well. When i import a model from C4D its gigantic in Maya.
u might want to look into a 3d particle system from maya or lightwave (or some other 3d package). u could also do it by physically building text against a black black and lighting it on fire if a software solution doesn’t give u acceptable results.