Way back I had the same feeling regarding being able to increase the F.R. But some of the other dudes here kinda turned me around and said, you should really not get in the habit of increasing your feed rate but DECREASING to fit the job.
In other words, your motors are tuned too low. Increase your max velocity and start runing all your jobs at 50%. That way when you need to go faster you will never chance missing steps and always have headroom to go MUCH faster with never needing to go much past 100%. Make sense???
HTH,
Sid