unless a tuner can crack the code and reflash the ECU, no, it can't be changed. it's simply one of the dumbest things I've ever seen an engineer do. they add lag as to not 'overpower' the driver with too much boost at lower rpms and totally kill the fun factor.
with the gearing so short, by the time the power kicks in at 5000 rpm, you're already at the limiter.