That's traction control, not lag. They don't put huge turbos on those that should lag past a half a second. The power band is low, the torque is a big ole lump sometimes, and you can get them to run high amounts of boost (or what sounds high). But they're no disco potato...20 psi on a K03 turbo vs 20PSI on something like a GT28rs is different worlds or bent rods.
Turbo could've died out from it being **** quality. I hope they didn't engineer their own turbochargers...
Maybe your mom is a secret Le Mans or touring racer or something who goes to track days a lot. And she didn't let the turbo cool down after her really long, rough races. I'm assuming it's water cooled, and forgetting to let it cool down after every drive should not kill it in a week. Next time, turn the TCS/ACS/BS off and you can probably do some nice number 11's.