Students with slower processing speed, weaker working memory, or limited attention should be particularly encouraged not to focus on the volume of work completed. The overarching goal for all students should be deep learning. You want to be sure students are still producing the same work as their peers. However, when time is a factor you want to help students who work at a slower pace maintain their confidence in the face of potential peer pressure. Help them learn how to balance quality over quantity and decide when quality is far more important. This will be an important life skill.