Ihave a MacPro 2 X 2,66 Ghz with 15 Go Memory RAM under LION 10.7.5. _

I tested with H 3000 version 2.1.1 from another HD System (a clone) and patches charge immediately.
Back on the HD System which is the recent 2.5 version H 3000 release, patches always last 20 to 30 seconds to load and freeze Digital Performer during the loading !