Texture compression settings not working


Im using the “Lossy compression amount” settings and also the “compression quality” settings under the texture details panel and nothing seems to change the compression quality of my texture. Its there a particular way to use these settings? Ive added an image showing the settings ive been changing.

In addition what would you recommend for textures that are more smooth and blurred out a little. I was hoping that these settings talked about above would give me fine control over the compression.

the same issue… tried different variation of compression quality and lossy compression amount… but the visual result the same and resource size also the same
*Compression settings BC7, tried texture with Alpha and without