No you have me all wrong, the tune is fine and the engine does not run hot.. all turbos don't like hot weather. The R is no different and even stock it feels like you are driving through treacle. Air con pinches performance as well so it feels a little doughy.
My post was more of a reference to the ridiculously hot weather we are experiencing than anything to do with the tune. I would recommend to anyone thinking of a tune to go do it, the Recode tune is a cracker, I cant speak to the comparison to any of the other tunes, but Recode tunes are pretty good