The V6 power curve is already very linear, it won't get any better with the exception of that dip. I fully understand being underwhelmed by a canned tune. As some one mentioned, it's most likely that the canned tune is just not enough for the mods listed.Idk why people are talking as if we expected massive gains.
What I was expecting was sharper throttle response and a slight increase in power and power delivery (smoother). Rereading OP's post, it seems like he was expecting similar results.
I guess that means we don't know anything about NA V6s. Lol k @AKGC.
It's also possible that the throttle mapping was not changed. I had similar issue with my first custom tune, I was very underwhelemed with the throttle response. I chalked it up to my experience with 1:1 on other cars so it wasn't that big of a change for me. The second time though, Jay applied an update he had with a new mapping and it made all the difference. Very noticeable.
Talk with the tuner, be respectful and if you can, provide data logs. Ask them to reflash it or make it more aggressive.