Exactly what it says. There can be a serious lag when typing on long pages like w:Wikipedia:Village_pump_(proposals).
Topic on 2017 wikitext editor/Feedback
yes the problem is there +1
Are you sure that the page has finished loading? Are you trying to edit the whole page or just a section?
@Whatamidoing (WMF) it's loaded, and I was trying to edit the full page. :-)
Hey, I'd appreciate if you followed How_to_report_a_bug. We clearly need more info if we're to report anything (I can't reproduce, so what's different between us?). TYVM!
@The ed17, is this still happening?
@Elitre (WMF) It is. I'm using Windows 10/Chrome with a pretty decent computer. I've just tried to type eight words in quick succession when editing that village pump page, three different times, and it is taking up to ~thirty seconds for all of the words to appear. Shorter pages like w:HMS Dreadnought (1906) also have a delay, but it's more like input lag (not even a second's delay).
(Edit: This happens with and without the wikitext syntax beta feature enabled.)
30 seconds ? that is insane... For me it is near instant. Can you try when starting from this page (disables your gadgets and userscripts) ?
If that isn't any better, can you start up an Incognito/Privacy mode window of Chrome ? That will disable all chrome extensions, when you use Wikipedia, and exclude that it is possibly an issue with a browser addon or something.
I've also experienced a delay in displaying typed characters (delay of about perhaps one second, depending on typing speed), e. g. on the page w:de:Berlin, when editing the whole page (the page was fully loaded before I began typing). If I used the old wikitext editor, the problem did not appear.