I apologize if this question is too open-ended, but I wanted to collect different ideas regardless of the specific tablet model.
I've owned an Android 4.1 tablet for quite some time now. When I first got it, the boot time was very quick. Lately, however, it takes much longer to boot. The lengthened time is not spent during the boot-animation, it's spent on the splash screen that appears before the animation.
I have rooted this tablet and am willing to pry deeply into the system files to try and resolve the problem.
What steps can I try?