Scott,
There doesn't seem to be any lag typing in the search box.
Can you try some of the other places I named?
Out of curiosity, when did the new editor come into play?
It was put into the New Topic & Reply message editing on May 22nd. It gradually replaced the old editor everywhere else but the wiki, by May 26th. It went into the Wiki the week ending June 2nd.
Lag didn't start on this reply until the 3rd sentence.
I guess that will make testing for it a bit tedious. Not knowing at what point it might kick in means you'd have to type extra long.
Shal