Under the Dynamesh button turn up the resolution slider to something around or above 512 Or leave dynamesh and just use the divide button from there is what i usually do
Playing with the polish settings and activating it in the dynamesh section may help. It tends to somehow change some details but it can help to get crisp edges in the roughing stage (before dividing up)
Hi i use dyna mesh all the time now, but its always low resolution what is a good technique to make everything high res/crisp and sharp, because all major forms are done on dynamesh i dont know the process afterward Thanks