The JackTrip Virtual Studio uses an inexpensive Raspberry Pi, and connects a low latency hardware codec directly into the Pi's bus, to achieve a latency of 1mS. At that level, the only other latency you have to worry about is the speed of light (through the internet). I've just published an article about the Virtual Studio at https://wmleler1.medium.com/setting-up-your-virtual-studio-6...