OK here is mine tested..
The AA in this sim need some serious TLC having a x8 AA or x8 AA on high res should appear so much better as well as the "insim" x8 it remind me the same case with "Rise Of Flight"
Their x8 is equivalent to an x4 at max..
Ok here is some setting that may improve your FPS
-Morphological filtering is cool but eat away your frame rate
-Anti-Aliasing Mode to "Multi-sample" AA , Adaptive or super are killer with not much difference.
-Now i could remove my 3 horizontal lines just by making my "Land Shading" to HIGH .. but we shouldn't need to .. Difference visual ? humm not much at all..
-Also By forcing the AA and Ani on my End gived me better performance and better visual as well. ( my settings are different from Gunny's but on my ATI it does works well )
CLOD need to improve on those matters..