there is no prob presently with BT, lightning speed through the tinny wires....
if one can call that lightning speed at all...
it looks like this is somehow a prob at your end. Yes, heat is always a major issue, some may shake their heads now, but read the manual of your motherboard, only up to at 25 degrees C you have 100% performance...if it goes beyond ISA +10.....well, we all know the degrading facts...