The subject says it all, really. 
I’m on a Mac, running Ventura, with an M1 chip. I’ve not installed anything new, except the recent updates to SC2…
I’ve done all the obvious things, up to and including uninstalling and re-installing the software. FWIW my Diablo plays perfectly, so it seems to be an SC2-specific problem and, as I say, it occurred after the last update.
Cheers… Simon