Weakness graphical features on EVO 4G

Weakness graphical features on EVO 4GEVO 4G mobile HTC reportedly has a weakness in graphics performance.
XDA-Developers HTC reported EVO 4G Frame Rate 30 fps maximum of only good in 2D mode (Canvas) and 3D (OpenGL). What makes the graphics performance EVO 4G to sag?
With the specification of hardware that should be carried HTC EVO 4G phones are able to render the graphics properly.
Speculation then grew errors caused by Android. But then ignored by a developer which states Android devices running Android 2.2 is targeted to achieve 60 fps frame rate.
Graphics performance issues on the HTC EVO 4G could be a big problem for HTC. HTC Hero, HTC mobile phones with hardware specs have been reported under the EVO 4G able menawarankan 54 fps frame rate and smoother scrolling menu.