You would find that later versions of Android would pretty much overwhelm your available space on the tablet and make it next to, if not completely. unusable. I had an 8 gig LG F pad that I loathe for that very reason. It is from roughly the same generation. It's also why I was glad to get away from 16 gig devices like the one in forced to use in the interim, while I'm recovering from major illness. I have a Samsung J2 Core with 2 gig of RAM, and in order to keep it running decently, minimal apps and multiple daily memory clearances are required.
You be better off selling or donating it and pick up something more current.