I’ve noticed there’s a standard trend with a lot of new shows, that goes sort of like this.
A decent concept gives a show about ten episodes worth of stories at its first step of development. They then need three more stories that may or may not impact the arc, but can pretty much slip into the schedule at any spot, e.g. it could be at episode 3, or episode 7, and it wouldn’t matter.
After it starts to become a success, they realise they need more stories for the next season, and as they have already played out their initial conceptual ideas, they need to introduce subplots and character quirks to keep the show interesting and mix it up a little. But they also need to maintain the core concept that has made it a success so far.
That means they will have more episodes that are cookie-cutter and can-fit-anywhere-in-the-canon while they try to sneak in their new arcs.
What that means is the first few episodes of the second season will always feel repetitious and same-y, until about episode 2.4 when they will introduce a simple twist, like moving the whole episode in a new location, introducing a new main character, or having some game-changing twist that will affect the following few episodes.
It’s a risk that if they change the show too much to keep it interesting at the wrong moment, it may turn people off what they liked in the show, but if they don’t change the gameplay at all, it will get too repetitious and predictable.
So. Having said all that, expect a new thread to appear in Lie To Me from about episode 2.4 or 2.5.
I’m watching episode 2.4 now, and it’s set in Mexico, they have a character from the pre-show past, and the daughter has her largest role yet. That may all be key to the show’s future direction.