XY Graph slow in response

Hi All,

I have 2 XY graphs in my VI and for some reason 1 XY is super slow in response. I have attached my vi here which demonstrates the behavior.

There are 2 XY graphs. The one on the top is super slow in response and the one below behaves normally.

Could anyone please look at the vi and let me know whats the problem with the slow graph?

Thanks,

Ritesh