Hi Guys.
I am a Reaper user (Win10/64), but I noticed the same issue (Ozone 9 adv takes eternity to load). Moreover, until recently it used to take same amount of time under iZotope RX7 adv... sigh.
But, today I needed to register one synth using an iLok app (iZotope's products I usually register through their own app) and geez... I don't know what happened, whether it was iLok (somehow!) or something else (I even don't know what exactly... because that was the only thing installed for couple of weeks), but now it starts as if it were v.8 Elements.
Again, I can't even imagine what happened on a deep level, but the fact is that after iLok app installation Ozone 9 ADV takes much less time to load under Reaper and RX7 ADV.
Maybe someone can understand and hopefully this may help somehow.
Cheers.
UPD: remembered one thing, might be important... along with that synth (Hybrid) or iLok app, I don't remember now, but I noticed that C++ 2005 Redistr has been installed (apparently it wasn't before)... so, most likely (well, may be) that is the root.
Have a great day, everyone!
- Stan