the scene file you sent me has various issues
material CG001 -> emitter (emit = 0.150) = has 4000 faces (this is the major problem)
other transparent materials have both 'ray mirror' and 'ray transp' on (they'll be mirrors, read up on in the luxblend manual)
some objects have no material assigned.
your model is HUGE. (1000000 million triangles for a wall-clock)
you should be able to get the same results with 10x less triangles and normal smoothing