A new version of the D912pxy add-on has added support for Blade and Soul. The wrapper forwards DirectX 9 calls to their DirectX 12 equivalent to improve game performance.
The D912pxy add-on was built specifically for the MMORPG game Guild Wars 2 in an attempt to decrease the API overhead of DirectX 9. By using the add-on this overhead is claimed to be reduced by up to 70 percent.
The most recent v1.1 release of the add-on now also brings support for the MMORPG game Blade and Soul, although performance improvements may not be as severe as in Guild Wars 2.