Oh, I see what you mean. Thanks for the suggestion--interesting project. It's not applicable to me, though--their download's an .exe, for Windows. I'm using a Mac (OS X), so the drivers are in fact the CoreAudio drivers built into the OS. (ASIO drivers apparently have some applicability to OS 9, but CoreAudio is the only option for OS X.)
Fewer samples are actually better in terms of setting latency--according to the Live manual, "Smaller buffers therefore create less latency but add stress to the CPU. The Buffer Size control allows finding the smallest possible buffer size that your computer can handle without troublesome stress to the CPU." So my 112 at 3ms is a hair better than 144 would be, but the question is academic since those are windows drivers anyway.
Still, thanks for the link--I'd not been aware of that project before.