CC Picture Changes When Zooming Out [SOLVED]

Did you clone the mesh to make a custom item or did you do a default override? If it's a standalone recolor I don't know much about that. I'm wondering if redoing things would fix it. Start with a fresh package. It looks like a mip maps issue to me. Mip maps are what the game uses when you zoom out from an item. Up close, the game uses the largest texture then switches to lower resolution textures as you zoom out. It's kind of like LODs but with textures instead of meshes. Obviously, if you don't have mip maps the game has to use the original texture when zoomed out. Did you use a DDS texture for your diffuse?

Edit: it's the size of your diffuse. Yours is 1800 pixels by 1800 pixels. Sims 4 won't even display that size; it'll automatically display a smaller size. And Studio can't make mip maps for you because the size of your diffuse is wrong. I looked at the textures from the original painting and the diffuse is 512 x 512. The normal map is 512 x 512 and the specular is 256 x 256. Those are standard sizes in the Sims games (Sims 3 and Sims 4). All of the sizes that the Sims games use are in powers of 2. For example, CAS items have a diffuse size of 2048 high and 1024 wide. It helps to check the original size of the textures and use that as a guide for your own. I always export EA textures just for that reason. 

So, yeah, make your diffuse size 512 x 512. You may even be able to double that size and get away with 1024 x 1024. If you use a PNG for your diffuse Studio will make the mip maps for you but the size has to be correct to begin with. If you saved the diffuse as a DDS save as DXT1 No Alpha if your texture has no alpha channel or DXT5 Interpolated Alpha if you do have an alpha channel. This screenshot is showing the no alpha option. Just make sure "generate MIP maps" has been checkmarked: