Whatever works for you is the right way to go but it's more like a few minutes for the whole wall section, not per sheet. In my experience with framing and construction in general I've found there's a lot to be said for a steady and measured pace then frenetically hustling around pushing hard the whole time. In the end the time difference is minimal and it makes for a more enjoyable experience.For example when rolling out roof trusses on a second story, instead of walking the plates we'd take a little more time and set up some simple staging to keep the crew back from the point of maximum danger; as pointed out above, ixnayed the 'let's keep the guard up on the skilsaw' technique, if doing a bunch of repetitive cuts set up saw horses instead of using the foot to elevate the wood, insist on the crew wearing safety glasses, all sorts of fuddy duddy stuff, including snapping guidelines when appropriate that I've been ridiculed for but at the end of the day just about as much was accomplished, it was a safer work environment, the work was more polished, and if it ended up costing us a few hundred bucks by the time the job was done it was considered money well spent.