Superior, no but different.
For production work and larger profiles, nothing can beat a shaper.
For home shops and profiling edges, even raising some panels, a router table is way more flexible. Because there is a nut on top of the shaper spindle, you are limited to edge profiles only. A router can do "stopped" cuts, finger joints, dados, rabbets, and all sorts of profiles.
I have 3 router tables and an old 1 HP 1/2" spindle Craftsman shaper which I never use. Using router bits in a spindle that only spins at 10,000 max, as in the shaper, is not going to give the best cuts. Smaller diamter bits need higher RPMs to be efficient, just like smaller twist drill can be run at higher RPMs than larger ones.
The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)