[DllImport("kernel32.dll")]
        internal static extern bool FreeConsole(); //Dispose Console

        [DllImport("kernel32.dll", SetLastError = true)]
        internal static extern bool AllocConsole(); //Show Console

You can use normal console methods, for example:

Console.WriteLine();

Console.Beep();

Console.Title = "blabla";

UI looks too good, nice work

System.Diagnostics.Process.Start(Application.StartupPath + "//WorkingDir//FPSUnlocker.exe");

looks good, but animation length should be shorter