And that's exactly why I despise the simulations (and their authors) that claim to crash or damage your computer. I can't state this clearly enough, no simulation can crash your whole computer just by being laggy. They can't even crash TPT directly. Of course simulating the next frame of a complex enough simulation may take more time than what Windows likes to give processes before telling the user that they became unresponsive and asking whether they should be terminated forcefully or not, but even then TPT is not dead, it's just doing what it was told to do.
This is not directed at OP, it's directed at everyone who believes that TPT can be brought down with anything but bugs and the authors who make them believe so.