This^Your number are just fine, nothing wrong there. If you wish to bring down NO3 then ~5ppm is a good number too but 10 is fine.
You have only had them a week or two? Give them time to adjust. Monitor your water, make sure you have good flow and light. Don't make any changes right now, wait and observe. Give them at least a month, some may never have great PE so that doesn't mean they are not doing well. Some corals can take months to acclimate fully, especially wild or mariculture corals. I wouldn't worry about PE at alll! These are just the first corals. Don't does anything crazy, add more food, or anything like that. Water changes, keep equipment clean/working, test water, check temps, random flow patterns. Keep the stability is more important than any PE.