Come and have fun on this new journey into ARPG <3

Here is a way to keep it from at least locking up your whole computer:

Start PoE2

Open Task Manager

Click "Details"

Right click Path of Exile process and click "Set Affinity"

Uncheck Cores 0 and 1

This will at least leave 2 cores free to be able to kill the PoE process. You must remember to do this each time you start the game.