I'll post a couple-
Disassemble, clean and polish all bearing surfaces in the lock.
Depending on trigger pull, some sear and tumbler work might be needed.
Glass bed the breech end.
Measure the bore to confirm actual diameter.
On "some" of my guns, the sear notch is altered a bit to shorten hammer fall meaning faster lock time. Don't laugh, it works but isn't for a beginner to try.
Get better sights. Most traditional ones are inadequate for competition.
Most important- range time. Shoot, practice, experiment, practice some more.