Is there really that much difference between 4.1.2 and 4.4? topic

I'm using Stock 4.1.2 and except 5ghz wifi isn't working am pretty happy with it.

Do the later custom roms add enough performance enhancements to warrant the effort? For me the 'proper' dpi and tablet layout of stock is highly preferred so any other layout is really not desired.

Thanks.

Sent from Galaxy i9502