Deadlifts and compound lifts in general should not be done for speed. If your CF were telling you that is good, then very certainly they were not teaching good

Deadlifts and compound lifts in general should not be done for speed. If your CF were telling you that is good, then very certainly they were not teaching good form. Form isn't just how you lift, but can you maintain that form through the exercise? I did CF for a while but stopped. After a few friends got hurt and another friend told me straight out "this is stupid", I realized how halfass thrown-together the workouts are. That "100 pullups" video recently really put it into perspective.