Slow Galaxy s8+ graphics

[Galaxyuserdude]

Hi I have a new s8+ exynos model. And I seem to be getting very low 3d Mark scores, especially on sling shot extreme. I get a score of around 2600, which from reviews of the phone and other s8 scores on 3dmark is low. And it tells me at the end of the test my device is my performing how it should.
I have gaming on and the game launcher is set for high performance. And there's no battery saving on.

Is this normal or am I doing something wrong?
Many thanks