Why do I have to re-install GPU drivers every time I connect or disconnect my Alienware Graphics Amplifier?

Got my Alienware 13 R3 with a GTX 1060 in it and the OLED screen a few days ago.

Swap SSD, do fresh OS reload, tell windows to NOT update drivers automatically, download all latest drivers and BIOS from Dell website, install, done. Get latest GTX 1060 (Laptop) driver from nvidia. Done. Laptop runs hot, but doesn't throttle great.

Connect Alienware Graphics Amplifier with GTX 1080 Ti, restart computer, install 1080 Ti Drivers from nvidia, thing runs great, fantastic 1440p 144hz performance for a laptop CPU + Desktop GPU combo.

Later. Disconnect AGA, suddenly GTX 1060 runs VERY poorly, no restart, no settings adjust, nothing fixes it until I re-install driver, then performance is restored. Great.

Later. Re-connect AGA with 1080 Ti in it, suddenly 1080 Ti performs VERY poorly, same story, I must re-install the driver before I can get full performance from it again.

This can't possibly be the intended behavior. So what gives?