I didn’t see any framerate drops, it was mostly just slow overall. I looked up your channel and compared to the video the game moves slower but doesn’t dip.
I’ve an i7-6700 2.6, so that would certainly explain it (other requirements seem fine). If you’re curious about the crash it was likely just an overheat problem so may have been coincidence. It’s really just old hardware so I don’t think there much to prioritize with performance concerns, unless you’ve heard about similar problems on supported hardware.
Yeah that sucks with inputs, there’s nothing to do about it. And that totally makes sense about the menu buttons!