javascript – shorter or more elegant code for if else conditions

I have the following if-else block, but I feel like there is a much better way this code could be written. Like shorter code or at least a bit more elegant.

movement(_b) {

 let centerOfPaddle = this.y + this.height / 2;

 if (centerOfPaddle < _b.y - 80) {
   this.y += 4
 } 
 else if (centerOfPaddle > _b.y + 80) {
   this.y -= 4
 }
 else if (centerOfPaddle < _b.y - 60) {
   this.y += 2
 } 
 else if (centerOfPaddle > _b.y + 60) {
   this.y -= 2
 }
 else if (centerOfPaddle < _b.y - 40) {
   this.y += 1
 } 
 else if (centerOfPaddle > _b.y + 40) {
   this.y -= 1
 }
 else if (centerOfPaddle < _b.y - 20) {
   this.y += 0.5
 } 
 else if (centerOfPaddle > _b.y + 20) {
   this.y -= 0.5
 }

}

Any suggestions will be much appreciated.