itch.io

You cannot believe how much this helps me, for so many other things too. Seriously, thank you!

I updated and also did what Atolm suggested. It runs perfectly smooth. Thanks a lot! :)

Intel HD 4600 integrated and Nvidia 860M dedicated. 

Great! I'm sure that'll do.
Do you know how could I possibly let the graphics card recognise AdventurOS.exe as a game? With other games it normally turns on by itself.

I am experiencing heavy lag in *some* rooms. I am nearly certain that it is due to the dynamic background: the larger is the portion of the background currently displayed, the heavier the lag is.

In the picture I uploaded I circled in red what I mean with dynamic background: it takes me around 6 seconds to walk from one blue point to the other. In the exact same room, just a bit further down, where there is no visible dynamic background, the game runs perfectly smooth.

I am playing on a gaming laptop with a dedicated graphics card, which isn't turned on by AdventurOS.