Unable to Export Large Collections

When exporting large collections, it indicates "Waiting for deckbox.org..." and eventually just stops. I've tried on multiple computers with different browsers. I've alerted Sebi when I noticed this issue and he informed me that it was a performance issue. He said the current export code is apparently too slow for big inventories. But that was over a month ago and I have not been able to back up my inventory since. I'd really appreciate some attention to this issue. Thank you!