TLXCardi

This is my 2nd winter with my TLX and I've recently noticed a heating issue. About 99% of the time I keep my car in auto mode all year around. I've noticed this winter my temp has to be set higher to maintain a comfortable temp. Right now I drive with it at 81 in auto, and the cabin is just warm enough. Last winter, I would usually keep it at 75-77 and be good and if I had it at 81, it would become unbearable after a few minutes, especially after the engine warmed up.

I recently drove a loaner '19 SH-AWD and had it at 81 in auto, and within minutes I was already sweating and getting uncomfortable. So now driving around in my own TLX at 81 and just barely being comfortable has me raising my eyebrows. If I set it to anything lower than 80, I start to feel cold air, or after driving around for a bit and well after the engine has warmed up, I'll start to feel cold air. Has anyone else experience a similar issue, what could be the possible causes?