2007 Mercury 25 EFI Possible Power Loss?

[MotorlessCSJ16]

Hey everyone. It's been taking a while for my J16 to hop on plane lately. I went down and pitch and only lost top end, not gaining any holeshot. Motor doesn't seem to have as much umph as when I first got it (could be in my head). I'm not sure on the RPMs, tach is on order.

Idles good and top end is good (I think). Motor has ~50 hrs on it.

Any thoughts?