difference in gaming style

So Aegis and I are playing Shadows of Mordor. I started a while ago, and just got busy working on stuff and haven't touched it in a while. The other day, I decided to get back into it. I really like the game. It has enough story for me, and enough stuff happening to keep me entertained. The fact that the game punishes you (not nearly as badly as Dark Souls) and there is all this stuff happening in the background of the game. Aegis, recently beat Dragon Age: Inquisition. Afterwards he was looking for another game, and since I've been talking up Shadows, he got it as well. I didn't even know he did, until I heard something from the living room that sounded familiar, and realized he was playing as well. We both had/have time off for the holidays so we marathon gamed. After a few hours (plus the 6 hours I've played previously), I killed about 17 captains and had finished a bunch of side missions and "runes". Meanwhile, Aegis apparently had fought some guys, did some stuff, and then went through the storylines and progressed to sections I didn't even know existed. By the end of the day, I had made my weapons legends, and killed nearly 30 captains. The next day, Aegis was on a whole different world section doing things I only wished I could, meanwhile, I'm still putzing around clearing out the first map. The same thing happened when I first tried out the game at my friend's place. When he got stuck on a section or captain, we would swap and I would blast through it, and vice versus. Same with board games. It amuses me to see how people's style of playing games are different.