[PyMOL] get_area algorithm and dot_density accuracy

Hello,

Does the get_area command use the rolling ball algorithm? Which
dot_density corresponds to the best accuracy 1 or 4? Is there a reason
why it consumes more time to compute sasa? Dssp takes significantly
less time to do the calculations, however compared to Pymol
dot_density of 3, the areas sometimes differ by 4,5,6,  squared
angstroms!

Any comment on that?

Regards.