Is it useful or not??

I don't know if someone else has noticed, but I've been asking myself, why does Meursault wants us to know every single detail of every single thing? I'm not saying its useless-but in result the story plot moves very slowly. I can read it and think it's an interesting way of writing, but I would like it to have somewhat more action and less monotony. Meursault describes exactly how the green, tall trees move under the hot sun, which in some ways makes it easier for the reader to make up an image, but still can bore others. I'm the kind of reader who doesn't need a whole bunch of details given to understand a story, what kind of reader are you? Do you think it's useful or not? Why? Hope I get some opinions!!!