1pt. of compression is worth approx. 3% in power increase/decrease which is mostly felt on the mid to big end where the cam shafts power comes into play. If the ratio plays better with the camshaft, the difference will be noted ever so slightly via the butt dyno. It will show at the strip by a very small margin. Very small.
Your camshaft working in a sub 8.0-1 ratio will have a noted gain @ 9.0-1 - 9.5-1.
Going from 9.5-1 to 11-1 will cause octane issues but no real gain noted or worth the expense. Going from 9.5-1 to 8-1 or less will have a noted decrease in performance into a sluggish realm. By compare.