With current wikitext editor, I could begin editing the EnWiki article United States within 3 seconds of clicking edit.
With the New Wikitext Editor there was a 30 second delay before I can begin editing United States. That is bad.
Then I tried one of EnWiki's largest articles, List_of_named_minor_planets_(numerical). (Yes, that is a gross article.)
With the current wikitext editor I could begin editing within 5 seconds.
With the New Wikitext Editor my load time was ONE HUNDRED AND TWENTY SEVEN SECONDS. That load time is utterly obscene.
On English Wikipedia there is strong community consensus that this issue is serious enough to be a deployment blocker. The key text was:
Actionable Blocker: Load time. Load time is a priority concern for both new editors and experienced editors. Possible resolutions:
- We could happily retain our current wikitext editor; or
- if possible, drastically reduce New Editor load times, particularly on large pages.
The obvious ideal would be to match or improve current times, with additional time subtracting from the value of the New Editor as a whole. This priority aspect quickly turns the New Editor into a clear downgrade from the current editor.
Preview times also need to be fast, which is even more critical. The editor only loads once, but 30 seconds to preview easily becomes 2 minutes or even 5 minutes when preview needs to be used multiple times.