While dxcpl.exe can fix "DirectX version not supported" errors, it is not a magic performance booster.
If your version is older (e.g., 2.3.1.0 from 2008) or newer but unsigned, replace it using the steps above. dxcplexe download windows 7 32bit version top
: Allows users to run games that require DirectX 11 on older graphics cards by forcing a specific "Feature Level" (e.g., 11_1). Force WARP While dxcpl