The fact that the storm has slowed down means the steering currents from the Atlantic high that have driven it westward so far have weakened. So now it is close to sitting in place waiting for the next weather system to pick it up, namely shortwave troughs coming in from the Northwest. All the models see that, it now is just a matter of where and when.
one more thing...Andrew was a very small compact storm...Irma is an average sized hurricane..not a HUGE MONSTER that cnn keeps saying..