Hey,
First of all I tried to run your game on my laptop but it wouldn’t even launch. So instead, I had a friend of mine testing out your game and he had around 60 FPS, which is fine. I think is his max limit due to his refresrate cap.
I tried to make a separate Nvidia Launch setting for the game, where I ticked almost every setting off. It gave about +1 FPS which is basically nothing.
I also made sure that I wasn’t using the GPU on my CPU. It’s disabled in my BIOS.
I too, use Unity for all my games, and I have never experienced this issue before. I’ve played several other Unity games as well.
Could it be something in your build/project settings perhaps?