Nope. Popping them out causes performance loss, not moving them to other screens.
If your only monitor is a touch screen and you break out a touch screen instrument, you can interact with it with your mouse. But not with touch. Touch “works” in the ■■■-backwards way I described in an earlier post. Moving said instrument to another monitor has zero impact on performance, nor does the wonky touch behaviour change.
It has nothing to do with multi-monitor support. It’s bad touch support.