[WWM]

I've noticed that the tachometer doesn't seem to be in sync with the piped in engine noise. At lower speeds the sound appears to be behind the actual engine revs. When I accelerate and the tachometer upshifts, the sound lags a second or two behind. I think the tachometer is accurate because it seems to be in sync with the engine as far as I can tell, which would mean the piped in noise is the issue. Is anyone else noticing this or is my car just problematic?