Yeah Apple Silicon + Host is a bear. The interface on Battalion is bad on Host, but I’ve found that it can be improved by minimizing the interface and bringing it back up. That eliminates the lag.
Not on release, but it will be added in. The Synth and Tone modules are polyphonic at release. For the delay and reverb, I’m currently waffling on RAM usage, as they both have large buffers (20 seconds, stereo). I might do a right-click menu (for maximum polyphony), or figure out a lazy allocation system.