Whilst I admit I do use WinUAE,(albeit an old one in 08.8r8), from what I've used with WinFellow, it seems to run fast even with older PC's like mine. It just seems to concentrate on the basics which is what I think most users would want.
As Retroman stated, WinFellow,like WinUAE are free products so we can't complain,(& without the adware hassles of some of the so-called "free" products out there.). It's be great if they won lotto-they'd might have more free time then to do what they like!!
Sorry 4 "stealing" your thread Paul-I couldn't find it again & thought it'd been deleted!