Not very high FPS results with running a Geforce 920 MX graphics card Cxntral.
The video card you have if Pci-e based is a very weak and under powered card when it comes to playing games.
It will mean in order to at least get a decent frame rate you would have to play the games in question at a very low screen resolution, and also the minimal graphics settings set for each Game you intend to play.
You really need to at least go for a mid range gaming graphics card in the £140 + price range.
The rest of your system to do with the cpu you have and the amount of system memory is fine.
But a Nvidia 920MX gpu is a really bad choice if you wish to play games at a good screen resolution, with medium to high graphics settings.
And if using a laptop it is often the case that you cannot upgrade the graphics Gpu of it.
Because the Gpu is soldered direct to the laptops motherboard.
That means your stuck with it.