The Masterlink burns at 4X, so a 40 minute LP takes about 10 minutes. It takes longer if you add DSP to the file, but I don't usually do that unless I'm getting stuff from cassette tape.
I can edit a 10 song LP in about 10 minutes. I guess I'm good at it lol. I wish the Masterlink had some kind of job/shuttle wheel that would let you move really quick through the audio. That is the only real problem I see with the Masterlink is that you have to scroll through the audio slower sometimes than I would like.