private void LimitFPS()
{
var elapsed = _fpsLimiterWatch.Elapsed;
var targetms = new TimeSpan(166666);
var tdiff = (targetms - elapsed);
if (tdiff.TotalMilliseconds >= 1)
{
FrameSleep.Sleep(Math.Min(5, (int)(tdiff.TotalMilliseconds)));
_fpsLimiterWatch.Restart();
}
else if (tdiff.Milliseconds < 0)
{
_fpsLimiterWatch.Restart();
}
}