Got it. Thank you for the clarification. It helps!
1. I think you performed well on the test and I think you should be satisfied and happy with the result because it got really close to your practice test scores and even maybe on the upper side. So you got a good result.
2. Any improvement in the test score could be achieved by studying only likely. I don’t think we’re taking in two weeks is going to yield the significantly better result. You may get your stars aligned and get the best of all the scores and perhaps eat out 675 or maybe 685 but that’s gambling 😂
3. It’s really hard to tell you what you should do. I think it’s probably depends on what would give you the best result in your application. If it’s due soon, you probably won’t to invest as much time as you can into making it stronger on paper but if a lot of it is done and getting a higher score is the best use of your time, then totally fine. You just have to look at where your time will pay off the most.