为什么我的加速度计反应如此缓慢？

I'm asking them at 50Hz / 50 times per second for data. When I suddenly flip the device on the x-axis by 90 degrees while the device was flat on a table with display facing up bevore, the values move pretty slowly to the "target" value for that position.I'm asking them at 50Hz / 50 times per second f