Can I just add one to the "What's all this about emulators?!" vote?
Why are you trying to use WinUAE to do anything? You don't need to, at least not if you're using the Amiga properly.
Either way it's not fair to blame the Amiga 1200 and AmigaOS for perceived shortcomings in WinUAE.
It seems to me you have some pretty fundamental misunderstandings about what the Amiga can do, at least that's what all this talk of WinUAE suggests. There's no need to go anywhere near WinUAE at all.
Best advice is to take a deep breath, and start again. Forget all this WinUAE nonsense, and ask the folk here who are mostly kindly and helpful, what it is exactly you're trying to do. Then we can help you to enjoy the Amiga - without WinUAE or any other emulators.