In my experience it requires a bit of mental effort to go along with it rather than waiting for it to have an obvious effect. Like with painkillers or antidepressants you can feel it affecting you without needing anything on your part. Elvanse for me has been more like, I still need to make a huge effort for things like getting out of bed or to not procrastinate but that "barrier" is lower and once you start you can just stick to the task a lot easier. So its more like an assistance or booster that doesn't do much by itself rather than an obvious "cure" of symptoms and behaviour.