Sorry, but I can't do nothing without at least the subvi that exhibits the problem.
After all the delay in responsiveness is after the panel is open (correct ?).
Furthermore the subvi should not be the same posted in the first instance, as you should have modified it based on our suggestions.
Finally, can you give us just a rough idea about the size of the subvi input data?
Paolo
Paolo
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LV 7.1, 2011, 2017, 2019, 2021