Hello I purchased community answers about couple weeks ago and I am interested in buying quiz and the crossword extensions. I am planning on running all three extensions (community answers, quiz and Crossword) and cometchat. My concern is: will having too many extensions cause the site to load slow? I will have users to create quizes and crosswords as well. Also, if there is any discounts for me for those two extensions I am interested in would be appriciated.