100% GPU Usage When Game Window Is Not Focused

[MacronShow]

As the title says. I am a streamer and I've noticed that when I play the game it runs / streams just fine, but if I alt-tab to another window, which you need to do frequently, the GPU usage for Grounded goes up to 100% and stays there causing the stream to lag. This does not happen with any other game or app. When streaming the game you have to hide OBS behind the game window, not open on another monitor, otherwise the same problem happens. Anyone else noticed this issue or got a fix? Thank you!