Seems the other way around for me. Driving more slowly, I'm not anxiously peering ahead looking for speed traps, plus things ahead aren't coming up as fast. But I do spend more time checking behind than I did when I used to speed. When speeding, I figured nobody was going much faster than me, so I didn't have to look behind me much! But going PSL (or below on multilane roads) is so much more relaxing I can't imagine going back to speeding.
