...in the top 100 of your area (20 reviews), it is not as important providing your reviews are consistent/good. After that point, regulars/a good clientele is what is best.
An experienced friend/hobbyist told me 8+ years ago, "that an educated consumer will take your best review and your worst review and figure you are somewhere in the middle." When there are all 10/10s, sometimes it looks too contrived. When there are all 5/5s, typically that is a warning sign, and when you have a nice, consistent average, that is great!
As stated above, these scores are not based on YOU, but rather how you compare to the gentleman's scoring system. Remember, there's desire for every wonderful lady out there, old/young, heavy/thin, etc. "One man's trash is another's treasure"

You can get a 10/10 from a gent who gives only 10/10s and honestly, that does not mean much. If you get a 10/10 from a gent with 7/9s, THAT is great!
There is "science" and your question is common for a new girl. Be consistent, don't compete, find a niche and once you have the 20 reviews to be in the top list for your area, you need to stay current (new review required every 3 months now to stay on top) and you are set! No need to worry your pretty little head with reviews, numbers, etc.
Hope this information helped and as always, wish you the best! Contact me if you have any further questions.
Your GFE Assistant~
Sexy Ton