Z values ​​are too large compared to x and y during reconstruction

I am reconstructing x, y, z due to a mismatch using the triangulation formula. My problem is that the values ​​of x, y and z are in very different orders. For example, the order of x is 0.001 and the same for y, but z is in the order of 10. Because of this, I see a straight line instead of seeing the face. Is there a way to apply some transformation, preserving the structure of the face, but getting a better reconstruction.

EDITED: here is a sample L-image and a mismatch map (normalized to 0-255 for visualization are not true values). My point is to show that the mismatch is pretty decent.