Update v326589 Changelog:
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• Bugs fixed and performance improvements for Vulkan graphics API.
• Fixed some rendering issues under OpenGL graphics API.
• Better detection of usable CPU cores.
• Fixed problems with Chinese Traditional translation in Road to Gehenna.
• Removed usage of D3DX library DLL.
• Enlarged FPS graph and added average line.
• Fixed problem with imprecise frame-rate limitation on Windows platforms.