usefull apps to use with your kindle
ok just got this kindle hd 7 and been tweaking since day one. i got twrp with cm10.1 running on it. some apps that have help my kindle are:
developer option, system tuner, and greenify is all you need to may kindle fly.
developer option app:
turn off all animation scales
freeze Google system apps, stop startup apps, tweaks
hibernate most all apps
before i had about 90-100mb free ram when first boot. now i get over 300mb free ram after boot. makes kindle a bit more responsive imo. and freezing those google apps will make your wakelocks go away and should increase battery life significantly. Google search is a big battery hog and needs to be put to sleep.