That question has been asked thousands of times over the past couple of years and, as you noted, the meter is still jerky. I guess that should answer your question.
The problem is most likely your state-of-the-art computer that can flawlessly handle far more complex programs than this flash game at frame rates in excess of double what the human eye can perceive. Or maybe your fantastic cable ISP that, again, can process 20 times the packet flow that this game requires. I'm sure your meter problem has nothing to do with inadequate servers or bandwidth at WGT's end.
[now removing tongue from cheek]