Yeah, it's a terrible deal, but that's the way it is. The most problematic thing about it is that it's very difficult to predict how you did based on how you feel you did. One of the only available options (if you feel you're failing the exam) is to just stop taking the exam and walk out of the center. You'll get cited with an irregularity report and it will go on your record, but it might be better than really low passing.
By the way, I don't support any of the above options AT ALL; I think it's better just to study hard, give it your best, and then see the outcome. A lot of people who truly feel they failed actually come out with decent scores.