Right now I'm using this laptop which is similar - mine looks lightly older (IE 940M vs 940MX).

My computer runs pretty well. It runs games like Overwatch, CoD:MW2, even WoW decently. Don't expect many ultra settings though. Here's a random WoW screenshot I had laying around for reference - usually ran at around 30 FPS. Computer physically is fine, a bit on the heavier side though - also needs to be pretty much permanently plugged in.

I've never played any of your games on my computer - or ever, except for PoE. I imagine PoE would run on the lower settings with medium particles though.