Since the beginning of 3d gaming game developers have used culling to reduce load on graphics hardware.  The Field of View, from the camera (player character if in first person view) is roughly 90.  A human's FOV is around 120 (degrees).  Anything inside that FOV must be rendered from the 3d model by the graphics engine.  The higher the texture, shadow quality, range, etc. the more intense this can be for your GPU.  So, we "cull".  This means we do not render anything that is blocked by a wall, or other object in the FOV of the player character (or camera).

Now, when you scrap an object, you are simply disabling the object's texture and mesh, leaving the object's culling information in place.  So, when you "look" through the area where the object was before you scrapped it, the graphics engine is still culling that part of your FOV.  So, it flickers.

What my mod does, is turns off culling for the cell from the inside out.  So, cell by cell, when you are looking out from inside the cell.  This is done by disabling pre-culling in the cell properties in the CK.

In very rich cells, those with tons of things to render, this is a very bad idea.  So, using the console to simply turn off pre-culling via the "tcp" command is going to be a problem, especially for lower end graphics cards.

Most settlement cells, however, are not in rich cells or, if they are, they are limited to only a few cells, so this system works.

The only drawback is the the mod causes the Cell Reset and Sprinting bugs.  Which are widely discussed and have work-around solutions in place.

Place it last in your load order and you are set.  It changes nothing else in any cell, so it will not conflict with any other mods if you place it last to load.