SpriteKit SKAction pause lag

I have an action and I used NSTimer

to create it, but I changed it to SKAction so that it stops when the scene is stopped:

let SpawnAction = SKAction.sequence([SKAction.waitForDuration(0.5), SKAction.runBlock(Spawn)])
self.runAction(SKAction.repeatActionForever(SpawnAction))

      

        
        
        
      

    

Now the problem is with a delay that exists in a piece of waitForDuration

code that I think it won't work right after the scene is paused.

This is the code I am using to pause / pause the game:

override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {

    for touch in (touches as! Set<UITouch>) {
        let location = touch.locationInNode(self)
        let node = self.nodeAtPoint(location)
        if (node.name == "Pause") {
            PauseLabel.removeFromParent()
            self.addChild(ResumeLabel)
            self.runAction(SKAction.runBlock(self.pauseGame))
        }
        else if (node.name == "Resume") {
            self.view!.paused = false
            self.addChild(PauseLabel)
            ResumeLabel.removeFromParent()
        }
        else {
            //Other code...
        }
    }
}

func pauseGame() {
    self.view!.paused = true
}

      

        
        
        
      

    

I would like someone to tell me how to properly force / pause the SpriteKit game as all the methods I got from the internet didn't work right for me. Thank.