It's probably worthwhile to work on some weaker areas of quant to lock in your scoring Q50 when you take the actual test. Also, you could end up scoring Q51 if you get down answering whatever types of questions you didn't get on that practice test.
Regarding verbal, people often get surprised by verbal and score a bit lower than they did on their practice tests. So, some, not a lot, more verbal work to strengthen your skills could make sense.
Also, you could take another practice test and see how you do.
By the way, intensity is key. You may be able to score even a bit higher than you did with more intensity. Also, don't finish a section early unless you are sure that you have gotten every question correct.
Short answer - probably not much more.