I'm on vix 2.1.4 at the moment ant compared to vix's earlier 1 series images particularly 1.3 I find hanging, Spinning vix and general unresponsiveness much more common.
That said, I still like the vix image, just that the regular slowdowns are a pain!(And thats with picons and EPG and Timeshift on a sandisk Cruzer USB, No HDD use apart from recordings)
Tho I may jump to the new BH image soon as from what I've heard stability and DTT compatability are v.good.
Perhaps you should look at your setup, I've not had any issues with spinning vix, even in beta testing. I'd suggest do a fresh re-flash and setup all your setting from scratch, dont restore backup settings then see how you get on.