Adjust the resolution scaling option in the game to place less burden on the GPU, since you haven't posted your system specs and game settings I can't help any further than that.
I've also noticed this for anything that plays the unreal engine. There are some known fixes such as going to application affinity in task manager and turning off core 0, go in game for 5 minutes and then reactivate it. You can also try and use an external monitor, make sure it's an actual monitor and not a TV. This will force the application to use your dedicated GPU if you have one.