I did try it already, doesn't help. The framerate drops heavily during the shootouts, particle effects and stuff happening on screen. My GPU is an GeForce 940MX. It's a laptop card, but I'm 100% sure the frame drops are not happening because it's not strong enough.
Here, the frame rate drops on a very strong machine as mentioned by the creator of the video:
So the issue has to be with the game itself.