Also, note that the bullet pool is A LOT stronger than the rapid pool and so you will be ranked at a higher percentile (better rank) for the same rating in bullet.
And if you are 2000 in rapid your inability to do well in bullet likely has little correlation with your raw thinking speed and very likely just pattern recognition and/or lowering your standards and/or mouse speed
And if you are 2000 in rapid your inability to do well in bullet likely has little correlation with your raw thinking speed and very likely just pattern recognition and/or lowering your standards and/or mouse speed