How to avoid weird topology with shrink-wrap when trying to retopologize really high mesh I don't really know what i'm doing wrong in the whole process of sculpting and re-topology. 
is not like it's a horrible topology but is not smooth. 

It is has to do withe the fact that the mesh is 5 million polys and shrink wrap is not precis with that many polys and i should do it the hard way just using snap to faces?
The problem was as the i suspect, the topology was tooo high and messy
I find a good way to solve this problems, just decimate the mesh and then use this videos to get a better topology in just minutes for the shrink-wrap 
https://www.youtube.com/watch?v=HBiR262Wdfc&amp;ab_channel=GrantAbbitt