I am using midifire, which have streambyter script inside and I connect midifire to ableton 10 standart easy and on mac you have a lot option even midiire have new outputs and inputes plus IAC bus
You must play little around latency under track. But I must do research of updated midifire app which have Au 0 latency, but I am not sure how this feature works and if is connected with ableton to get 0 latency. i am not sure. Nic would know better about this.