Admin UI for taxonomy, social tags uneditable due to slow loading

[kookster]

from @rpeterman-gp:

I think we have too much data for WP to handle. It's frontend is not optimized for sites with lots of terms in a taxonomy. The Social Tags field is uneditable because before you can edit it, it has to load all 61K terms in that taxonomy (loaded 100 at a time via API requests). Each request for 100 terms takes ~2-3 seconds. That works out to somewhere between 20-30 minutes before the Social Tags fields gets rendered.

[brandonhundt]

https://advomatic.zendesk.com/hc/en-us/requests/8596

[kookster]

There is a 4K thread on this, @brandonhundt will add context - they are looking into this as well.