Calculated, Meng Fan's hit rate was not high, barely making 50% of the shots even with +2 accuracy, or 60% if he really tried. It wasn't because the +2 accuracy were wasted, but because Meng Fan was too big of a noob to begin with.
If regular people had an average success rate of 60%, it would still be really hard to achieve 400 points on a basketball arcade. It didn't account for Meng Fan being a speed player!
His hand speed was at least five times faster than other people. These 400 points were from his low hit rate, and the balls that bounced out affected the number of times he scored. If these hindrances did not exist and Meng Fan utilized 100% of his hand speed, he could achieve a much higher score, even if his hit rate was low!
Next up, Meng Fan had to decrease the occurrences of these hindrances.