If a .177 a tune will make it very smooth at 10fpe, however when you actually look at what a tuner is doing 95% can be done by the end user if they are willing to open up the gun and take their time. What you need to remember is the lower power guns such as the 50 and 55 had a smaller swept volume and lighter piston...and there is a reason for this.
Saying that 10fpe from a 95 would still be nice using the standard hardware, good lube and a good polish