It all depends how much prep you did before.
Tutoring alone is not going to get you to a higher score. Tutoring will help you learn the basics and will help you explain some of your weaknesses.
The main thing is up to you. You need to work on practicing the concepts on real, timed LSAT tests. 80% of your time needs to be spend you personally doing the work, reading, learning, practicing, reviewing...
Be careful who you sign up with for tutoring. Many of the testprep company tutors follow a script and basically provide you with the same as if you were sitting in a class.