Well...
ver avg scan time 2.4x 2.7 seconds 3.0 30.4 seconds
OH MY! Network test :)
Ouch, that's slow.
Some points of interest that may be a part of the difference:
Do you have bayes enabled (a major consumer not present in 2.4, particularly when autolearning and autoexpiring)?
Did you disable the AWL (defaults to ON in SA 3.0, unlike 2.4)?
