I know this has supposed to have improved but If I load up Addictive Drums 2 it is still unusable and regularly hits the red line on CPU usage and clicks. As soon as I disable it the CPU jumps back to around 22%.
On a side note this also seems to happen with the new Ampire. Even with just one audio track in a project! (i've tried this on a 2015 Macbook pro and i've also have issues on a 2014 iMac with the same).
This is the one feature that stops me working fully in Studio One 4. I love the integration with Console one for instance but it running into trouble with one multi instrument?!
Please work on this!