Reported by mdcurran on 2014-01-17 06:15
If moving the caret around a document in Microsoft Word with report spelling errors turned on (default), there is a noticable lag before the braille display is updated. Turning off reporting of spelling errors definitely reduces the lag.
When collecting text from MS Word, we currently check for a spelling error on every word, which would mean a great deal of calls.
Perhaps we should collect all spelling error offsets at the start and match them as we move through the text by word.