2010 e89 23i Underperforming

[pantosh]

Hi all
For those who have the 23i version with automatic transmission, what's your actual 0-100kph time?
I bought it in mint condition (aesthetically and mechanically) with 28K kms on the odometer (Now 40k kms) and I've always felt poor low end torque since I got the car. My 0-100kph time is about 11.5s in Sport+ mode, which should be 7.3s regarding the paper. I always use 92 octane fuel. The elevation where I live, is 1550m.
I'm not sure where to start, everything in the engine bay looks very clean and untouched. I've already reset the valvetronic with ISTA-D, but no luck.

The car felt slow, but after replacing the DME, it felt even a bit slower. I cloned the DME to an identical one using Hextag. After that, I always get the following DTCs whenever I run ISTA-D:

2FA3 DME: No coding
2FA4 DME: Incorrect data record

Could this be a cause of low power output. Also, how can I get rid of those two DTCs?

Thanks in advance!

Here's a short video of how it accelerates:

[B21]

A mis programmed DME isn’t going to help..needs to be flashed properly to stock

23i not the quickest but if spun up should do the book numbers