I have been playing Ark Survival evolved for a few months now, but I’m not impressed with the performance that I’m getting from my PC when running it. I read about the Ark survival -sm4 mode where you set this startup paramter to force the game to run in DirectX10 mode.
First right click Ark survival game in Steam and select properties,
In the Menu, select Set launch parameters.
Set the launch parameter to -sm4.
Save everything and start ark survival with -sm4 mode. I noticed a slight degrade in the graphics quality, but a signification increase in the frame rate.
Some users have noticed a decrease in some lighting effects, like the light of a thrown torch. so if that bothers you, just remove the -sm4 mode from Ark survival and play normally.