There is some really good advice given here already and I think before you go chasing "better" equipment you might want to consider getting some training to master the platform you already have. Sure you can spend a bunch and get a 210 or another target type pistol but the basics of pistol shooting will still apply. Many people report good things about your current pistol and though any manufacturer can make a lemon please consider that it may not be the pistol that is at fault here.
It could be that the sights are off,or maybe the ergonomics just don't work for you,it happens. Have you tried bench resting the pistol to check the sights? You don't mention whether you have any training or if you practice regularly or if you practice dry firing. Shooting a pistol is a very "perishable" skill and requires a lot of practice to maintain a high level of performance. Ultimately mastering one pistol will allow you to transfer those skills to another; although all are different, the basics of stance, trigger control and sight picture remain constant. In short if you have trouble driving a Toyota buying a Ferrari will not solve the problem.