Weird Flickering Problem

So I have several objects that have a shaking effect. But when I have another object spawn randomly on the screen when the objects are shaking, everything flickers. I have no idea what the problem could be. When I comment out the spawn code (which I will post below) it works.

if( this.GetComponent().alpha <= 0.08 )
{
    transform.position = Random.insideUnitCircle * 5;
}

It is probably that your computer cannot run it. Try to turn off some background apps maybe?