Just out of curiousity does the Flash performance differ in Internet Explorer? I don't normally use it either but it's a decent test when you have problems. Another thing that sometimes helps is to go into the browser's configuration settings and disable hardware acceleration. In the case of a mobile setup you may not want to use the hardware acceleration unlike a desktop computer. It's worth a try.
You should be able to tell if you are working at native resolution or not, regardless of what the display properties says. Native resolution is perfectly crisp and lower res is noticeably fuzzy. If 1366 x 768 and 1280 x 720 both have the same amount of fuzziness to them then 1366x768 is not your native. If 1366x768 is perfectly crisp then that is the panel's native res.
A bus station is where a bus stops. A train station is where a train stops. On my desk, I have a work station…