I see them going for under pretty cheap on ebay. But I bet a newer variant is out/will be out soon that will have android 6.0? The community here super active?
There must be something wrong with your pad. I have had torrents running, a Film playing and still been able to jump between other apps with out even a stutter. Running CM 12.1 on my LG Tab 7 that I got fot 56 UK Sterlinghonestly these tablets processor is too old and slow imo to be able to run 6.0. With only 1 gig of ram i'm struggling to browse the internet and go on facebook.