Image block default width
Image 1920 pixels wide (but may be defaulting to 960 width)
The image is blurry is a component meant for images

Rich text block full width display
Image 1920 pixels wide 
Image is crisper in this component meant for text

Rich text block normal width display
Image 1920 pixels wide 
Image is crisper in this component meant for text

Rich text block set to normal width
Image 960 pixels wide

Rich text block set to full width
Image 960 pixels wide