Try no more than 6 channels at a time, making sure to hit the Group UDS checkbox if it's there, as well as the turbo button each time when logging. There looks to be very large gaps between data points in your logs. I'm not sure if possibly you have an older/slower cable that is limiting that as well for you.
Could be slightly different from my particular ECU, but try to log each of these as their own log. In bold is what I name the files, and you can save them in VCDS so they're there for quick reference every time you go to log.
1.
VNT - RPM, boost spec, boost act, vnt %, EGT, main IQ (this could be mean IQ or main injection quantity, ask your tuner)
2.
RAIL - RPM, rail press spec, rail press actual, rail pressure regulator %, metering unit activation %, mean or main IQ
3.
AFR - RPM, boost spec, boost act, MAF, lambda, mean or main IQ
Here's an example of how much more data points you get which should speed up any tuning.