sync status page very slow
The 'sync status' page gets slower as the number of products and repos grows. It appears that there are two areas that cause it to be slow.
First, https://github.com/Katello/katello/blob/master/app/controllers/katello/sync_management_controller.rb#L29 can be very slow. With 10 custom products and 7 enabled RH products, it takes about 7 seconds for that line to complete.
Secondly, a call to candlepin to fetch subscriptions is made for each RH product enabled. Each of these takes 300-400msec.
To repro, import a manifest and enable a few repos on some RH products. Sync all products to get some sync data, then view page.