If tapping an icon on a home screen takes the tablet a fraction of a second just to provide visual feedback for that, I'm sorry, but this is simply not a good tablet. Not anymore, not with iPad in the picture.
There were 'misconceptions' that Java was slow too. And Java was slow. And still is in some use cases. But somehow that's the fault of the user, not the technology?
Frankly, if you're gonna have error for reviewers, I'd put in as many cheap, unmaintainable perf hacks as I could.