I wouldn't be too concerned. The lead wear is only 0.7 ppm/1K miles. Yes, it's higher than what it should be, and that may be a function of the thinner M1 vs. BMW's A3-rated oil.
FWIW, I have a '95 M50 that puts out 0.3-0.4 ppm/1K miles of lead with most oils. On one run with Syntec Blend 10W40, the lead wear jumped to nearly 0.7. On my '97 M52, lead wear hovers around 0.1 ppm/1K miles. So lead wear differs by individual engine and can be impacted by oil and operating conditions.
If you're really worried, change out the oil you have in there at 5K or 7K miles and send in a sample for a recheck. You didn't post whether you have other UOAs on this engine or not, but I like to get some baseline data before rushing to judgment.
BTW, your silicon level is high. Are you running an aftermarket air filter? My engines rarely exceed 3-4 ppm silicon. Also, I'd be a little concerned about the 1.5% fuel in your oil sample. BMWs tend to run rich during cold start, but the fuel should burn off with extended driving. Norm should be less than 1%; ideally, less than 0.5% I'd check the condition of your spark plugs and see if there's anything suspicious.
Finally, consider enlisting Terry Dyson for his expertise. I've been a customer for two years now, and his help has been invaluable.
