It’s most likely that given BFQ low latency’s generally low performance that the link isn’t saturated by those background processes, and that lets the foregroun

It’s most likely that given BFQ low latency’s generally low performance that the link isn’t saturated by those background processes, and that lets the foreground application that’s starting up have more bandwidth than it would otherwise have. It’s not that surprising, really. It’s just like a per process I/O cap.