I don't know if this is the best place to post this but - since we're having a discussion about the much-anticipated new SMP - I thought I'd mention it here.
I am one of those low and slow people that miss the cloud reflections and the precipitation system of SMP. When Cameron described his system for testing the new SMP, I decided to set my XP back to OpenGL from Vulkan and I saw my performance go UP! I have absolutely no explanation for that one. I did not change any of my other setting nor the area in which I was flying nor the plane I was using. This has born out consistently for three days and that's with reflections in the water. Go figure . . .
X-Plane 11.51 r1, GeForce RTX 2080 8GB RAM, i7-9700 3.6 OC with SMP clouds out to 30,000 with crepuscular rays and shadows turned on. Oh, BTW, screen res is 2560 x 1440. (I will admit I'm not using too many plug-ins. SMP, RWC, ASXP, and MaxxFX, a couple of small lua scripts, and XPRealistic. The plane I was using at the time also had Simcoders REP package loaded.
This scene at Bella Coola (and it's snowing on top of everything else going on) is clocking at 38 fps. Under Vulkan, it would hover around 30. Just thought I'd share this experience in case anyone else might want to try it and see what happens.
(Cameron, if this should be under a different / better category, please feel free to move it.)
Cheers and Blue Skies