On Sun, Jul 23, 2006 at 10:43:15AM +0200, Georg Baum wrote: > Am Sonntag, 23. Juli 2006 03:22 schrieb Enrico Forestieri: > > > So, what is doing LyX with equations to justify such a slow down? > > Do you use math macros? If yes, do you see a difference if you remove them? > Maybe this is related to http://bugzilla.lyx.org/show_bug.cgi?id=2452
No I don't use math macros, only lots of displayed equations. I really can't understand why they affect so heavily qtwin but not qtx11 (same machine, same LyX sources). Math macros seem aggravating the situation. I tried the file attached to bug 2452 and it took 2 minutes reaching the end of the document pressing page down when using qtwin, 40 seconds when using qtx11 (scrolling slows down progressively when approaching the end of the document), whereas 3-4 seconds sufficed when instant preview was on with both qtwin and qtx11 (after all equations were rendered). -- Enrico