Yes, the game is very GPU heavy due to all the complex lighting and volumetric smoke effects.
Are you using laptop with integrated videocard? We have reports from players who are using very low spec hardware that game is unable to render half of the scene. Runs out of memory.
If you have a way to force your computer to use a dedicated GPU, do it. I know some laptops have like a general-use mode and a gaming mode that they (usually) automatically switch between.
Actually I accidentally submitted a google form feedback before I noticed the graphics control settings 5 minutes of playing which I lowered the graphics to the minimum and it helped a bit.
