[RESOLVED] Uptimize my Random Number Generator

[coolcurrent4u]

Hello guys,

Am using a random number generator in a loop
I used this function to generate random number in vb.net and it worked fine

'//Generate RandomNumber
    Private Function RandomNum(ByVal Lower As Long, _
    ByVal Upper As Long) As Long
        Randomize(Timer)
        RandomNum = Rnd() * (Upper - Lower + 1) + Lower
    End Function

Converting to c# made is extremely slow

////Generate RandomNumber
        private int RandomNum(int Lower, int Upper)
        {
            System.Random RandNum = new System.Random();
            int MyRandomNumber = RandNum.Next(Lower, Upper);
            System.Threading.Thread.Sleep(100);// this line makes the random generator give unique value 
            return MyRandomNumber;
        }

Please can you help me uptimize it?