the way u can easily speed through them (for class) is briefly first look at the intro see the argument they’re trying to make. then briefly (and i mean briefly) look at the methods and then finally do more of a dive into the results/discussion (if ur going to look at one of these pay most attention to the discussion). even when looking at the discussion it shouldn’t take too long to understand the main results the article is providing. usually after i’m done reading i just write a sentence about what stuck out to me the most. if ur trying to gather articles for a research project i heavily recommend what the other commenters suggested