Interpretation Performance curve – 9-3 2.0t Stage 3

Dear Saab friends, I have found a YS3D with Noob Stage 3, 3″ Downpipe, Maptune AGA, Turbo from Aero, Do88 LLK and a phenomenon in power measurement, but also in real operation and hope that you can help me with the analysis. In the diagram you can clearly see the fall from 2700rpm, which makes itself noticeable in wot as wavy acceleration. What I have read out so far with open SID in the hope to see a randomity (= also a burglary) there: Pinl: runs the same äßig hoch bis 2150, kein Burglung mAir follows mReq well, excessive at 2500rpm by approx. 20, otherwise remains approx. 20-70 under mReq -> could the too much measured air mass take back the power? ZZP: zw. 2000 and 3000rpm at approx. 8-9° at wot, from 3000rpm continuously rising (= more early ignition). Thank you and many greetings, Axel