2019 LT Trax AWD

I have a 2019 Trax LT AWDthat I bought from Carvana in August of 2021. I’ve only had 2 major issues, one was the EVAP line and the other was the battery, which was the original - just replaced it last month!

But I do have a concern… on a full tank, I usually get around 210 miles. I do drive mostly in town, but it’s certainly no where near the 27 combined (24 city/29 highway). It does have 56k miles on it, so I’m not sure if this is typical or not. It’s always been this was with the mpg. Am I due for a tuneup or a transmission flush? Would this even help?