Frame rate problem -Sphere-

function game()
  {
  CreatePerson("person", "aegis.rss", false);
  SetPersonSpriteset("person", LoadSpriteset("Trunks.rss"));
	AttachCamera("person");
	SetRenderScript("Movement();");
	AttachInput("person");//but we don't want the standard movement interfereing with the movement we'll be having so...
BindKey(KEY_LEFT, "", "");
BindKey(KEY_RIGHT, "", "");
BindKey(KEY_UP, "", "");
BindKey(KEY_DOWN, "", "");
	MapEngine("Test.rmp", 60);
}

var facing, walker;
 
function Movement()
{
	walker = GetInputPerson();
	if (IsKeyPressed(KEY_UP))
	if (IsKeyPressed(KEY_UP))
 
	walker = GetInputPerson();
	if (IsKeyPressed(KEY_UP))
	{
		if(!facing ||
		    facing == "d" ||
		   (!IsKeyPressed(KEY_LEFT) &&
		    !IsKeyPressed(KEY_RIGHT)))
		{
			facing = "u";
			QueuePersonCommand(walker, COMMAND_FACE_NORTH, true);
		}
		QueuePersonCommand(walker, COMMAND_MOVE_NORTH, true);
	}
	 
	else if (IsKeyPressed(KEY_DOWN))
	{
		if(!facing ||
		    facing == "u" ||
		   (!IsKeyPressed(KEY_LEFT) &&
		    !IsKeyPressed(KEY_RIGHT)))
		{
			facing = "d";
			QueuePersonCommand(walker, COMMAND_FACE_SOUTH, true);
		}
		QueuePersonCommand(walker, COMMAND_MOVE_SOUTH, true);
	}
	
	if (IsKeyPressed(KEY_LEFT))
	{
		if(!facing ||
		    facing == "r" ||
		   (!IsKeyPressed(KEY_UP) &&
		    !IsKeyPressed(KEY_DOWN)))
		{
			facing = "l";
			QueuePersonCommand(walker, COMMAND_FACE_WEST, true);
		}
		QueuePersonCommand(walker, COMMAND_MOVE_WEST, true);
	}
	else if (IsKeyPressed(KEY_RIGHT))
	{
		if(!facing ||
		    facing == "l" ||
		   (!IsKeyPressed(KEY_UP) &&
		    !IsKeyPressed(KEY_DOWN)))
		{
			facing = "r";
			QueuePersonCommand(walker, COMMAND_FACE_EAST, true);
		}
		QueuePersonCommand(walker, COMMAND_MOVE_EAST, true);
	}
}