Hi all,
good news, we have been able to make a breakthrough regarding the performance issues reported.
Though not 100% satisfied with performance yet and in some cases there are a few lags still, we decided to release the update (which will be called 10.0.1) containing these fixes as soon as possible as the general improvements over 10.0.0.2 are significant. We will further improve performance in another update later this year, goal is to reach the performance of QuarkXPress 9.5 (or better).
QuarkXPress 10.0.1 will also add official support for OS X Mavericks and Windows 8.1 (on non-High DPI displays).
Besides these changes QuarkXPress 10.0.1 will include improved support for working across multiple monitors under Mavericks, improved stability, fixes for a range of output issues related to PDFs with native transparency, improved support for Adobe Illustrator PDFs containing transparent objects and much more.
10.0.1 is a free update for all users of QuarkXPress 10. We are just readying the release and plan to release it early next week. Of course we will inform everybody about the availability of 10.0.1 here and also Auto Updater will notify you automatically.
Regards
Matthias