So a faster CD reader is the answer. Wish the Options->Performance tab made it more obvious that multiple CPU ripping doesn't work

I've just paid for the gold version in the hope that ripping CD to flac would be sped up as I have a 4 core/8 thread CPU. I can see it is enabled in options but my rip times are the same and task manager shows only a single thread active.

What do I need to do to enable this??