Graphics speed and stability

Hi,

I've been working to finish up an application for the Roku, and I've
noticed a few issues in a couple of areas that I wanted to raise, in
order to make sure that we have a rock-solid application.

1) It seems that the speed of the display is fairly slow in terms of
writing graphics to the screen and then seeing them update. The good
news is I don't see any flicker. The bad news is that I see around a
500ms latency in the display updating. This may explain why the Roku
interface in general feels a bit sluggish. This leads me to two
questions:

a) Is there anything I can do in my app to make it more responsive?

b) Is this issue likely to be addressed in future versions of the
software, or is it an inherent characteristic of the underlying hardware
platform?

2) In terms of stability, I've had several occasions where the Roku has
locked up solid on me, both within my application, and other places,
such as adjusting the display size to eliminate the black borders. I'm
wondering if there are known issues and if these issues are likely to be
fixed in an upcoming release.

Best regards,

-elan