The model is executed in 3ds Max 2017 and contains also files max (2014) and .obj files.
Many models have the value turbosmooth on the viewport - 0, and the renderer iterates (render iters) it is necessary in advance for the qualitative picture value.
The number of polygons without tesellation is 1,054,172, while with tselellation in the render about 3 million.
When importing a model in obj, in the import window, tick the smoothing groups, otherwise the model will not smooth out properly.