Updated my 2012 Nexus 7 the other night and I am underwhelmed by the "improvements." I am also ticked-off to find that my Kindle app no longer properly displays the contents of the e-books. In addition, my ESPN app now clutters up my notifications panel and it never did that before. Is my next step clearing the cache for each app?

Other options beyond that?
Also, I am having problems that have been mentioned above: odd dimming, very slow performance. Have we gone back in time to when it took a day or more just to get a cellphone to work?