Okay, so finally got to the bottom of this, and you guys were correct all along. Onboard charger is 32A. Bizarre thing is, I have been dealing with a Tesla rep for the last month and he has been telling me that it will charge at 48 amps. So I have been trying everything including replacing the Chargepoint station. After talking to you guys, I mentioned to him that I was told the onboard charger is 32 amps for the model of car he sold us. Conversation went dark for a few days and when I asked him again, he came back with a big apology and said he somehow overlooked that issue with the model 3 ST+. Bizarre to say the least. As for what I and my electrician saw, it must have been the kilometers I guess. I can’t confirm this at the moment as its my daughters car and its not here. I also asked if I could replace the onboard charger with a 48 version. He said to talk to the service department. Anyone know if thats possible? Where is the onboard charger located? Thanks again for the help, sorry for the confusion.
That's not gonna happen. Service centers are busy enough with repairs... even if frankensteining a different charger were possible, they aren't going to do it.
That said, does this really matter? Unless you're driving 24x7, it should be fast enough to fully recharge the battery every night.