I think if you occasionally check-call TPTK it's fine, as long as the board is uncoordinated and you think your opp might try to take it on a bluff/semibluff if checked to.

You may be either betting too much with TPTK to allow TPWK/2nd pr to call very often, and/or you could be very predictable to your opponents who will know that you have TP when you bet a certain way, both of which are bad.

I don't know if you want to be stacking most opps with just TPTK (this depends a lot on your opp however). Getting another round of betting in is usually as good as you can hope for.

If you are taking down a lot of pots on the flop uncontested then maybe you need to start taking down more of them without the hand. This will give you a little more money, and will likely lead to you being called/raised more often when you do have the hand. Even a small increase in aggression can help a lot.