For Android a fast CPU is better. That's why we have Snapdragon 835 phones now.
I believe that 2-3 years ago a very slow CPU was chosen. And I suspect the same CPU has been used in the latest generation without updating to a faster CPU.
Sony VW500ES, LG OLED65E6P,
Magnetar UDP800, Panasonic UB9000GH1
Anthem AVM90, Krell Evolution 3250e, KAV-2250, Sunfire TGA-7401
Ken Kreisel K700 Pro x 3, KS700 x 8, DXD-500 x 2