I'm not on my laptop right now but I'll definitely post specs later! My computer is about 5 years old going on 6. The game was fine before laptop mode but it lagged here and there. but with laptop mode on it runs smooth as can be!
and honestly I have no clue how turning the lighting down to low made the Sims less dark but it looks a whole lot better than it did haha. or maybe it was something else I just noticed the difference after I put it on low. ☺
and yes laptop mode definitely makes me enjoy playing the game a whole lot more!