Open BmGame\Config\BmEngine.ini and add these lines under [Engine.ISVHacks] :

If the X-Ray room is still laggy after the primary fix, try these common adjustments:

: If the game is still choppy, temporarily lower the resolution (e.g., to 720p or 640x480) just to get through the X-Ray room combat encounter Minimum Graphics

This report treats the query as a digital archaeology case, blending tech support, game design analysis, and urban legend.

In the repack’s launcher (if available), force DirectX 9 instead of DX10/DX11.