Why Solidworks has graphic issues?

Why Solidworks has graphic issues? I think that Solidworks engineers are sleeping.  can you share with us about graphical issues.

residual image

Cosmetic thread (drawing)

lost view

Cosmetic thread

Cosmetic thread

residual image (weld bead)

epdm explorer no preview

sectioned diameter (see radius dimension)

lapped view

thank you

SolidworksGeneral