yes , that is a workaround , but I'd like to have the sunblinding effect (minus the black flicker ofcourse)
I can only say, everything is fixed in the upcoming Pure LCS.
I decided to have a different strategy for Pure LCS than in Pure Gamma.
Like for the sunblinding shader i found a much more efficient code to determine the appearance of the sun in the camera. So the shader does actually have nearly no influence on CPU and GPU. Also i decided that it doesn't produce extra graphics, it just controls postprocessing parameters in the Pure ppfilter scripts.
Also it is now compatible with the VR SPS mode, which give many fps back.
All of Pure's shaders (sunblinding, landscape, groundfog and lightning) are compatible with the VR SPS mode then!
My strategy for Pure LCS is: "use the simplest and the most effective way to produce a nice look".
So it already has less CPU and GPU consumption than Pure Gamma and even less than default wfx.
All the troubles with the shaders in Pure Gamma are fixed in Pure LCS. I will release it early September.
Here you see a comparison of the 3 weather styles and their fps:
Also you see the CPU and GPU usage is smoother in Pure LCS due to a better computing sequence of the different parts.