There's always latency. But it seems pretty darn good. I'm just having issues with adding a new instance of ICONS to another track making the overall latency jump up significantly. The buffer size in my DAW doesn't change though. But when I do change the buffer up or down it returns to normal again. Frustrating and not sure if it's my Motu M4 when working with the plugin or something else. I'm using Studio Pro 8 too. Think when I'm able to later today I'll try it with another interface to see what happens.
Do you use the same interface for input and output?