To reassure everyone ...
I use ROM CM9 Bravo and I'm pleased with the performance.
There are still some bugs but almost none related to speed.
I recommend you use this ROM, it is very good:
http://forum.xda-developers.com/showthread.php?t=1557606
Before you have to apply Blackrose >>>> 220MB - 10MB - 206MB
Durente installing this rom in custom in place of the sd-exd choose class 10.
We await the official CM9 !
I use ROM CM9 Bravo and I'm pleased with the performance.
There are still some bugs but almost none related to speed.
I recommend you use this ROM, it is very good:
http://forum.xda-developers.com/showthread.php?t=1557606
Before you have to apply Blackrose >>>> 220MB - 10MB - 206MB
Durente installing this rom in custom in place of the sd-exd choose class 10.
We await the official CM9 !