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JackJohn - I would also check your RD hanger alignment to ensure good shifting performance.
As others have mentioned, Wheels make the most difference. Of course you should be open to the performance of having a racing geometry, Only you can determine the return on investment. For me, I like to ride on a racing geometry and have high responsiveness.
This is the 760
P1040454 on Flickr
P1040796 on Flickr
My current favorite, 1988 De Rosa Professional with all Record 10V, <22lbs. A lot of $$ invested in this one. Did I say it is my favorite?
P1040420 on Flickr