Performance question: Accessing public variables.

 private var PlayerScript:Player;
 
 function Start () {
 
     PlayerScript = playerTransform.GetComponent(Player);
 }
 
 
 function Update () {
 
         if (PlayerScript.check){
                 
              //do stuff.
         }
 }

This is just some pieces of my code. When I try to access a public variable, like in the if statement above, PlayerScript.check, would this drain down performance, even if I access such variable multiple times in an update function?