Your idle adaptation at 4.3% is OK. According to the Bentley +/- 10% is considered a “normal” range. Your partial adaptation at 25% is not OK. The maximum partial adaptation is 25%. So that would indicate that your ECU has to add a substantial amount of fuel. Typically when you see corrections of this magnitude there is a large amount of false (non-metered) air entering from somewhere that isn’t going through the MAF sensor.

The first thing I would recommend is to perform a boost pressure test. Pay particular attention to everything between the MAF sensor and turbo inlet. A crack or split in the TIP will cause a false air condition without showing a boost leak.

Another possibility is a dirty or defective MAF sensor. But first I would eliminate a false air condition. If you don't find anything with the leak test we can move on to other possibilities.