Hi! If I understand your question correctly and this is about the facetted look once re-meshed, that's expected behaviour with low-poly meshes. The resulting, dense mesh is the same shape as the low-poly just with a higher density, which results in a much more defined shading. To get a smooth surface you will have to apply…
Im using radial symmetry but it's creating some gaps around the mesh where the radial symmetry don't work, maybe the difference in surface height could be the problem?