Its just the way some people are I guess. Im with the op, I am usually going at a pretty fast pace, burning calories, darting from one ride to the other always trying to beat the crowds. Just about everybody in my party has a hard time keeping up with me. But thats just the way I roll, lol. Of course I have my fastpasses and stuff and try to plan in my head accordingly about which one to get and all that other stuff, bla, bla lol. And its not because I rarely get there, I live in Texas and Im the only person I know from here that goes as often annually as I do.
But there are times when I slow it down for whatever reason, maybe I want to get something to eat, my feet are hurting really bad(which suprisingly rarely happens) But its rare. Im usually doing atleast 2 WDW parks a day with naps inbetween, and I have it down so well where I can hit almost every major ride lol. I honestly cant see why anyone would want to go to the sit down restuarants at WDW. To me thats like wasting valuable ride time. But I dont have kids, and usually its just me and my dad, so Im sure those same people cant see why anyone would want to dart from ride to ride lol.
But yea, its all about preference. I wouldnt worry about those people who vacation the way they do. Everyone experiences the magic of disney differently, and the way they do it makes it special to them. And its the same with me.