Frames Per Second Decreases Over Time

Could you post the script/s?

Here ya go @guyt, here's the only script I'm using:

 var rotateSpeed : float = 1.0;
 var moveSpeed : float = 1.0;
 var projectile : Rigidbody;
 var projectileSpeed : float = 1.0;
 var reloadTime : float = 1.0;
 var BulletSpawn : Transform;
 private var nextFireTime = 0.0;
 
 function FixedUpdate() {
     var playerPlane = new Plane(Vector3.up, transform.position);
     var ray = Camera.main.ScreenPointToRay (Input.mousePosition);
     var hitdist = 0.0;
         if (playerPlane.Raycast (ray, hitdist)) {
             var targetPoint = ray.GetPoint(hitdist);
             var targetRotation = Quaternion.LookRotation(targetPoint - transform.position);
         if (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.$$anonymous$$oved || Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Stationary){
             transform.rotation = Quaternion.Slerp(transform.rotation, targetRotation, rotateSpeed * Time.deltaTime);
             transform.Translate((Vector3.forward * Time.deltaTime) * moveSpeed);
             }
         if (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Began && Time.time > nextFireTime) {
             transform.rotation = Quaternion.Slerp(transform.rotation, targetRotation, rotateSpeed * Time.deltaTime);
             transform.Translate((Vector3.forward * Time.deltaTime) * moveSpeed);
             nextFireTime = Time.time + reloadTime;
             var bullet : Rigidbody = Instantiate(projectile, BulletSpawn.position, Quaternion.identity);
             bullet.rigidbody.AddRelativeForce(transform.forward * projectileSpeed);
             }
         }
     }

What do you have this script attached to?

When are you destroying the bullets you instantiate?

@guyt, I have a little perimeter set up around the player made out of box colliders. The bullets are destroyed as soon as they collide with one of them. Forgot to mention that part in the intro. $$anonymous$$y Bad