Hi, glad that you like GranuRise. Yes, older iPad can be slow, if you haven’t yet, you can try to use with the USB connection. Maybe that would help a bit. Anyway, we have plans to release a Lemur integration in future updates. Anyway, for now, the priority is on Windows (+Touchscreen) better integration and the Push 2 integration. Anyway, the Lemur, Monome Grid and Arc integration are on the list. We will keep you updated.