Orbiting objects appear stretched

So im trying to make this interface where a bunch of buttons orbit around the player until they select one. the buttons are all moving correctly, but they appear to be stretched when they are coming and going around the player. when they are directly across from the player, they appear to be the correct scale. The transforms of the objects are not actually changing, just their positions so its really just a perspective thing, but it looks terrible when their actually going around the sides. Is there any way i can fix this? Hers my code

 using UnityEngine;
 using System.Collections;
 
 public class Orbit : MonoBehaviour {
 
     public Transform targetObject;
     Vector3 rotationMask = new Vector3(0, 1, 0); 
     public float rotationSpeed = 5.0f; 
 
 
     void FixedUpdate() {
     
             transform.RotateAround(
                 targetObject.transform.position, rotationMask, rotationSpeed * Time.deltaTime);
         transform.LookAt (targetObject);
     }
 }