As Glider said, if the braking system is working well and bled properly, about the only other adjustment that can be made is different contour of the grips or levers IF the problem is fit only...and after all other items have been checked and alternatives have been exhausted.
Just remember that you should have a mimimun 3/8" or so distance between lever and grip with the hardest squeeze you can muster, so if you have small hands and want to improve reach distance, some aftermarket levers have cam or locking screw adjustment, or lightly heating the lever to contour slightly, but keep that clearance in mind for safety reasons.