What kind of settings should I do to export for Texture Quality?

A very good 3D model (utility pole) was made by RealityCapture
[Fig.1]

In order to export this to Unity,
Press [RECONSTRUCTION]> [Texture]
(Textures will not be exported unless you do this)
Then the texture is reconstructed and the image quality drops very much.
[Fig.2]

In the state of good image quality like [Fig.1], What kind of settings should I do to export?

Improve it after restructuring the area to the target.

Hi Toshihiro Yasuda,

Steven answered this in a different post. The model on the right is probably a high poly model with vertex colors. Sometimes it happens, that the texture will be displayed in a very bad resolution, which is a display issue. The real texture is probably much better. I think it’s a bug…