It's a hack, sure. But by the looks of it, it's probably so low-traffic (only mount/unmount and a few battery events, possibly something else) for it to have any actual performance impact.
So unless there are any stability issues there are way bigger fish to fry performance-wise at the moment. ^^
It actually does, it's just that the current firmware only specifies the subcategories for xfce (which lxde dutifully ignores as it should).
The easiest fix is probably:
mkdir -p $HOME/Applications/Settings/menus/ && ln -s /etc/xdg/op/menus/xfce-applications.menu...
As can be seen here pnd_notify.c (and thus libpnd) watches for IN_MODIFY, this means that any time someone writes to a pnd it will trigger an update. This is highly inefficient (and potentially dangerous), any time you're downloading something into a pnd-watched folder the cpu will spike as it...
LXDE is very sleek indeed, but some battery indication is a must so I hacked in support for the pandora percentage reporting (unfortunately since it picked up the wrong battery I hardcoded the prefix for the pandora one - making the prefix an option or simply a list option could probably get it...
Good news, turns out I have to hold the right arrow down for just a little while before it registers. (Can press it multiple times in a row without a single hit.)
Thus it's probably just the same issue others have reported and should hopefully disappear with a little use.
So, time for some...
UPS walked in with a package not long ago. And yes, the content is awesome. ^^
The one issue I have though is that on the DPad it doesn't register going to the right. I can feel/hear the keymat being squished much more than normal, so possibly it's misaligned or something similar to the issues...