I'm working on a 2014 Chevy Cruze with the 1.4T

I pulled the stock tune and made a couple of changes to it. But I really don't know where to start making any changes for mileage or performance.

Any Guidance would be appreciated.

Cruze Stock Tune_0000.ctz

This ECM is quite different than the LS1-B or that Atlas ECM im more familiar with.

I assume the TCM must be pulled separate or is unaccessable?