Thank you for your interesting reply! Unfortunately, this method has not been successful, as the dreaded driver error still shows up. Edit: probably because roblox has decided to set my graphics to opengl instead of direct3d. So, I decided to do some more fiddling! I had a strange issue where Novetus would only force OpenGL, which after installing d3d10 and running dxdiag and restarting wine, seemed to stop. Performance when setting renderer key to "vulkan" improved dramatically, but no luck with 2010+. Here is what happened in full detail: I set the video memory key with your reg file, 2010 no workie. I set renderer to vulkan, 2009E and 2009L went from laggy windows xp to smooth butter, 2010? Still no workie, AND OpenGL ONLY. Installed D3D10, 2010? No workie, BUT, the auto graphics issue solved, now automatic. 2010? No workie. Under more examination, the automatically set graphics issue seems to be Version Based. Running 2009 and below auto sets to DirectX while 2010 and above seems to auto set to OpenGL. d3d9 is installed.
A lot of this seems extremely fiddly so far, like testing 2010, restarting and then playing 2009 crashes 2009, but when restarting, 2009 works because the graphics were auto set to directx. I need 2010 to force Direct3D somehow.