Speed issues with Dynamic form

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Excellent Plugin, kudos to you and thank you so much to you.

Problem that i am facing is, when there are multiple form elements under the dynamic form, it becomes too slow, say for creating 20 lines, it is taking almost 5-10 min, sometimes even more, this grows exponentially with the number of rows.

Any ideas on where is going wrong or what I need to do to speed it up?

Regards
Aditya