This problem was still in 9.x.
In 9.5 the metering displays (peak,loudness, spectrum,etc.) are all not synchronized with the sound.
In 9.0 you could minimize this problem with a small buffer size of the CoreAudio buffer.
But in 9.5 even with a buffer size of 32 samples the problem stays visible…
(Running OSX10.10 on iMac5K)