Audio IO solution with custom MEMS mic array for RT streaming audio processing?

Good Day
I am in need of a Audio IO interface for Raspberry PI 4 and came across the followinf product.
While it appears it can do Audio IO, inmy application I wish to mount my own analog MEMs microphone which is different spacing instead of the one supplied. Is there a way I can plug in or easily attach my own MEMS mic but still use the IO drivers supplied to acquire mc signal . process it in real time and send it to a speaker through the board?
Another question what is the minimum latency to stream real time microphone audio in , pass thorugh the raspberry PI and get it out at the output… i.e even if I use the Mic array as suppleed

ReSpeaker 6-Mic Circular Array kit for Raspberry Pi - Seeed Wiki (