You just don’t have to cut the stitch but tug that thread out of the fabric as well. As soon as you cut one stitch, remove that thread at once. People usually cut the stitches and in the end, they remove the thread which may create a big fuss and you can ruin the appearance of the fabric. When you are cutting the stitch with the help of seam ripper, you can tug it with the help of ripper.
This step will just not help you in completing the work quickly but it will also help you in getting expert in ripping stitches. You won’t be able to do any mistakes in the future when you are going to rip the stitches out of any professional project.