Why does my dynamesh take so long to remesh?

sophiam

When polys start stretching, I ctrl drag on my canvas to remesh my dynamesh. I have about 2.5 million polys in my sculpt right now and when I remesh it takes about 3 minutes to remesh. Is this normal or am I doing something wrong? How can I improve this?  Worried newbie here.. 

kanga

Check you don't have Dynamic subdivide on by accident.

Neox

also turn of project, the difference is usually neglectable