compression data S8 5V motor 1999

Hello dear forum members.
I'm from Begiën and I bought a S8 yesterday.
Until now I have driven the Audi 200 turbo Treser from 1986 for 12 years, www.treser.be
But on the 30-12-2006 my bolid is unfortunately frontally cracked.
Fortunately, it wasn't my fault.
I always wanted to buy an S8 and drive for the next 10.

The engine has a total running power of 122,000 km
Yesterday we did a compression test at an Audi werkstad in Kreuztal.

The results are the volgende:

1: 14.3
2: 12.6
3: 12.1
4: 11.5
5: 11.6
6: 10.8
7: 10.8
8: 11.6

Jets points negative to the high compression on the 1e cylinder.
Is this a problem or is it normal and how is it possible to create higher compression values?

Unfortunately, the werkstad had absolutely no idea what the maximum accepted tollerans is for this engine.
Also one would not know how the compression was his sole factory.
After we had made our own phone call with the Hanover Audi Center, we got the following statement.

The minimum accepted compression is 8 bar and maximum is 15 bar.
The maximum greaterance is 5 bar.

But ever I wonder if this is the right thing to do?