Battery drain while plugged in

If I am playing an intensive game the battery will slowly discharge. I switched to a 100w charger but the issue still remains. When this happens the plug also gets really hot from trying to charge and power the system at the same time. 

the TDP also is not working correctly and I think this may be the issue. I’ve seen the wattage spike to 40w during gameplay but usually sits at 32w. The built in settings basically do nothing.

any ideas?