My iPad 3rd gen running iOS 7.1.2 is also very slow and jittery when using H9 control. The actual real time control of parameters still works ok, but changing screens, scrolling through algorithms, editing presets etc are all pretty laggy. I have tried it directly after restarting the iPad, with no real change in behaviour. I only got the H9 recently so I don't have any previous software to compare it to. Any idea when you might be releasing an update?
