Refresh Coupon Ratings To Zero

Hi, I have a strange feeling the coupon ratings are slowing down my pages. It seems there is a correlation between amount of votes per page and page load speed.

That being said, I would like to find a way if possible, to refresh all post ratings back to default (blank). How would I go about this?

Notice how this page:

https://cannabiscouponcodes.com/store/grasscity/

loads a lot slower than this page:

https://cannabiscouponcodes.com/store/azarius/

I want to keep the voting system – just restore default values.

Thanks,
Matthew
CannabisCouponCodes.com