my first was a 20+ hour job.
No 2 was 3.5 hours
No 3 was a rather swift 1.45 hours.
So yes, in my experience, 2nd was quicker.
The pain is just the same though, but because you know what to expect, I think you can relax more and know your limits....with No 2, MW asked if I needed more pain relief than Gas and Air, but I deferred as I was not yet at that exhausted "give me drugs" stage,
WIth baby no 1, I think I was overwhelmed and would have taken anything to stop the FEAR of pain. not the pan itself, which in retrospect was not that bad. But nothing prepares you for it and the fear that those early contractions are going to get much much worse....
With No 2, I was confident that I knew what was happening and was more in control and less frightened.
MW also reminded me, at about 6cm, that the pain wasnt going to get any worse, just closer together, and that really helped me focus. Consequently, didnt need drugs other than G&A