Should you take it in to be looked at? Also no, unless you want to waste your time with tesla trying to explain to you why nothing is wrong.

For a VERY “TL ; DR” version, EPA range only applies under driving like the EPA test, which is like 42MPH. There is also a more battery use in the cold.

If you want more explanation than that, there are several threads here on the same topic, and I can also point you to a 185 page (page, not post) thread in the model 3 subforum that is on the same basic topic. To save you the time of looking at that, no, nothing is wrong.