When images are blurry, a factor that could be responsible for this could be the incorrect use of shutter speed when taking the picture
What causes images to be blurry
Images can become blurry due to various reasons some of theses are listed here:
Out of focus: When a camera fails to focus properly on the subject, it results in a lack of sharpness and clarity in the image.
Motion blur: If either the subject or the camera moves during the exposure, it can cause blurriness. This often happens in low-light conditions or when using slow shutter speeds.
Poor quality or dirty lens: Dust, smudges, or scratches on the camera lens can distort images and make them appear blurry.
Low resolution or scaling: Enlarging a small or low-resolution image can lead to blurriness as the pixels become stretched and lose clarity.