The UX on the manage suggestions page is a little out of place and performance isn't great with a large number of suggestions. I'm sure we can do better by adopting some of our more modern practices using the REST API and DataTables Wrapper.
It can be tricky to keep the same behaviour we have now. The "Organize by" views.
Could the changes like the ones made in Bug 30070 (Performance issues with edifactmsgs when you have a large number of messages) be applied here?
Yes, that's the idea. Though the edifact messages was a simpler case. I'm aiming to prioritise your other EDI piece first, than I think this is the next one on my list to revisit. As Jonathan says, there's a few extra bits to consider with this particular UI, though I think it's achievable.
Duplicate of Bug 31024?
And of course I did mean Bug 33430!