Not sure if you have experimented with the weight, but I think if our racket is stock then yes you need to make changes. With the heavy balls you are getting our racket should probably have a higher swing weight the the stock radical. I would add weight, and decide if you like the balance or if I want to made it more evenly balanced vs. head light and gravitate to more weight on the extremes.
If you must get a new racket, try the radical pro and see if the open pattern helps, but even then you will want to add weight IMO
5 Head PT57a 12.3 oz. 11 pts HL. Pair of PT167a for the wife. Nursing a semi, one hand both sides.