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X is a server, not a framebuffer with compositing and acceleration. It is a design made to scale up and allow advanced corner case of headless, or mindless (thin) computers.
It was designed to be that and it is. If you think it's too much for you, then it probably is. Some design decisions may make sont aspect of it look strange compared to Windows, but it is not done without reasons. Your needs are just too restricted to see why it have been done that way.