Cheeseonpie

I understand that the game has to render lots of players but why is it not using my gpu right, this even happens outside of big city such as driving around country roads. I could be on a empty road but only having 90ish fps with around 50% usage. This is annoying as i have a 144hz monitor and ets2 could easily run 144fps plus if it was using my gpu right. This dosn't happen on any other games. (Ryzen 5 5500 and Rx6600)