Conditional Formatting - prevent duplicate rules

I solved it myself. Basically I went through the entire workbook and made sure there is no double up in any of the conditional formatting rules. Now when I copy and paste the rule doesn't duplicate any longer.
My file was soooo slow before and now runs like a charm. I had tons of duplicate rules in there which killed the file.

Thanks anyway.

Hi Rookie11, I am having same issue of creation of duplicate CF rules. Can you please explain further, what is double up in CF rules?