Ours are integrated with a computerized targeting system that improves their accuracy and reduces the time to aim considerably. Ours are also capable of firing rocket assisted shells for much greater range and also precision munitions.
By default they aren’t. Overall, every expert is going to tell you that the Russian artillery is more advanced. They have laser-guided shells in 152 mm with the deviation of half inch at maximal range since 1980s. The US tried to obtain the technology but was banned from it by the Russian export control at the time. The alternatives are only appearing nowadays and at the cost of over $100k per shell, whereas the Russian is around $6-8k.