I'm using .chartAngleSelection to grab the angle of the taps on a SectorMark. When using .chartAngleSelection, it does not register "fast" taps on the screen. You have to hold your finger on the screen for longer than a tap for it to be registered. I've tried the same code with .chartXSelection and .chartYSelection and there is no tap delay. I'm not sure if this is because .chartAngleSelection just came out of beta but it definitely impacts UX.