@Pizzagirl --No. you can’t dumb a course down because people can’t get it. the course is designed to impart a particular body of knowledge, not physics for middle schoolers. It certifies they’ve been able to understand enough of that and then move on to the next level.
If they really “can’t” learn enough to pass, then the option is failure, or dropping the course. Obviously, I get why @sylvan8798 is looking for another approach that will work, but not teaching what the course is designed to teach subverts everything a college education is supposed to be.
The fault there lies in the admissions department, and/or advising, or some level where this disconnect between ability level and mastery of subject occurs.
But the answer isn’t “let’s pretend.”