I think we're all self-limiting due to our technique. Hendrix couldn't play like Segovia, and Segovia couldn't play like Hendrix (I'm guessing here, but pretty confidently). I think the key is to analyze what you're doing ergonomically, and see if there's a better way that will allow you to go further in pursuit of whatever type of music you want to make -- and be willing to change, even if it means taking a step backwards in speed/fluidity while you master your new and improved techniques. You can do this by yourself, but it generally works better to do it in conjunction with others who have encountered the same issues.

However, everyone is unique, with respect to both musical vision and physical aptitudes. So we all need a certain amount of humility -- there are some good suggestions out there that may be broadly applicable, but there is more than one "right" way to play.