The scale can only get from low to high.
To change the scale from "1 to 5" to "5 to 1" with css you need to add this to your css (maybe add an ID just in case)
.form-scale-table tr:first-child{
display: flex;
flex-direction: row-reverse;
}
tbody{
display: inline-block;
}
tr:first-child th{
width: 30px;
}