Geom-Deluxe slower with everything other than D3D?

Did some rough speed tests with shaders yesterday, and geom-deluxe stood out for being almost 200 FPS slower with the glcore and vulkan drivers compared to the D3D ones. Normal behavior?

hmm, not that I know of.

This was with an old Nvidia card, on an AMD Notebook I tested with (no Vulkan there) glcore can’t load the shader, d3d10 works and d3d11 runs with about half the performance of the former. Standard geom doesn’t show any of these wild differences.