Throttlestop power limit issues

My i7-9750H is undervolted at -175mv on the core and -100mv on the cache. I have run several stress tests using prime 95 and it is stable. However, I discovered when running prime 95, if i unplugged and replugged the laptop charger when running the stress test, the power becomes limited to 43.7 Watts instead of the set PL1 value of 45 Watts. Furthermore, when looking into Hwinfo, the PL1 and PL2 values read as the set 45 and 90W respectively, and throttlestop indicates that the PL2 is doing the throttling, instead of the PL1. After a while, this also leads to a bsod, with different error codes each time. Can anyone help with this?