Emulator

DX11 laggs and OpenGL is broken
Games e.g. Mario Kart and Mario Wintergames
starts with hardcore lagging since Rev 513--> 008fdc73106a
No newer Version fixed it, with rev. ef7083d78cde
everything runs as fast as possible without lagging.
But I would like to have the new updates, so please fix this.

I think the problem comes from. Rev 513--> 008fdc73106a: Commands:
Slightly (~7%) decreases performance when performance metrics are used. (what is better, one game works and many other laggs???)

Between version 3.5_491 and 3.5_513 e.g. Mario Kart starts to lag in the character menu and after starting the game it is little bit slower as before this versions.

I test it with my:
2 machines: AMD Phenom II 965 BE (Windows 7 x64 and Windows 8 x64) both with GeForce GTX 560Ti (up to date drivers)

1 machine: Intel i5-3570k with the on board 4000 HD grafikchip (Windows 8 x64) (up to date drivers)

So this can not be a hardware problem as you told me long time ago.
Please look at this issue because it touches many users.

Thank you very much.
Cheers.