Im confused,Background parallaxing looping is visible and not smooth?

I actually have three problems here. Parallax and looping are working but:

1. Background looping is really delayed.

2. You can see when the background loops again. You can see it snapping mid-game and not in a smooth manner.

3. When the background is moving it kinda stutters very subtly but you can see the glitchy stutters it does.

   Script for Parallax:

using System.Collections; using System.Collections.Generic; using UnityEngine;

public class Parallax : MonoBehaviour { private float Length, StartPos; public GameObject Cam; public float ParallaxEffect;

 // Start is called before the first frame update
 void Start()
 {
     StartPos = transform.position.x;
     Length = GetComponent<SpriteRenderer>().bounds.size.x;
 }

 // Update is called once per frame
 void Update()
 {
     float temp = (Cam.transform.position.x * (1 - ParallaxEffect));
     float dist = (Cam.transform.position.x * ParallaxEffect);

     transform.position = new Vector3(StartPos + dist, transform.position.y, transform.position.z);

     if (temp > StartPos + Length) StartPos += Length;
     else if (temp < StartPos - Length) StartPos -= Length;
 }

}

If anybody knows why this could be happening... Please... HELP!