For example, when I'm using an app like ES file explorer ( from gapps) and I click on the search bar the keyboard only comes up after 4secs or so. I have a feeling it might just be that the memory of the pi is nearly maxed out (550mb for Android, 80 mb or so for the app and a bit more for background processes.
Regarding to the keyboard, on browser I find that the keyboard does not pop up when the address bar is tapped, only pops up with the Google search bar.
Could you tell me how to delete the preinstalled apps? Do I just mount the system and find them in file manager? What about changing the screen res? Mine is at 1440 by 900 at 60hz