Turbos have come a long way.
I've already gone over using an turbine apu at 40psi and the weight and space penalty.
Lag isn't what it once was and it's easily either harnessed to your advantage or easily overcome with compounding.
Our mile racer will go 300mph in the mile and has no trouble idling through the drive-thru at mcdonalds on the way home from KSC.