We have a client using Drupal 7 and Ubercart 3.x. They need to have all options under 1 of two attributes: size or color. The color attribute has over 1,000 options, and this takes awhile to load on slower servers. We're looking for a way to speed up the display of the listing by 1) add pagination to this page, and or 2) add search ability. Jquery DataTables may be an option, but we're open to ideas. Whatever we need to speed up the display of the options.
Please let me know if you have any questions.