If I edit a not small document (1M DocBook) and the on-the-fly spell checker is on, it causes annoying slowdown (CPU: AMD XP 1600+) when I press arrow-down to scroll. It will continue scrolling after releasing the the key (like for 1 seconds for a typical scrolling, but more if I wanted to scroll more) because it can't keep up with the repletion rate of the keyboard. Without on-the-fly spell checker no such annoying slowdown is perceivable. Now, you may say my CPU is old, etc, but let me do two notes:
- It appears to me that the rate of this slowdown depends on the size of the document. Like with a 74K DocBook (which is still several "pages") I don't perceive any slowdown. Is it really necessary that this continually perceivable resource consumption of a spell checking grows as the document grows (after it has reached a certain size, of course)? I don't see any such theoretical necessity. - I have edited documents of similar size with MS Word on much slower computers, and while the spellchecker may be delaying sometimes (especially right after opening the doc), it didn't slowed navigation down. It was like running in parallel with everything else. So, maybe some architectural redesign could fix these. -- Best regards, Daniel Dekany

