Brick Moving problem?

I currently have a script that makes a brick follow you. Problem is, whenever the player moves, the brick lags behind a bit. Is there anyway I can make the brick move more accurately with the players torso?

function onPlayerEntered(player)
    player.CharacterAdded:connect(function(char)
	char.Torso.Transparency = 1
        while wait(.0001) do
            script.Parent.Transparency = 0
			script.Parent.Size = Vector3.new(2,2,1)
			script.Parent.CanCollide = false 
			script.Parent.CFrame = CFrame.new(char.Torso.Position.X, char.Torso.Position.Y, char.Torso.Position.Z) * CFrame.Angles(0, math.rad(char.Torso.Rotation.Y), 0)
        end 

    end)
end
 
game.Players.PlayerAdded:connect(onPlayerEntered) 

Weld the object to the character's torso. It is more efficient than what you are doing.

function onPlayerEntered(player)
	player.CharacterAdded:connect(function(char)
		char.Torso.Transparency = 1;
		local weld = Instance.new("Weld", char.Torso);
		weld.Part0 = weld.Parent;
		weld.Part1 = part -- part you want to attach to Torso;
	end)
end)

game.Players.PlayerAdded:connect(onPlayerEntered);