Increased Performance or just Placebo?

[Apple]

Hi All, Just had an ECU refresh to fix the warm start problems, and Very happy that this has fixed the issue. It seems to have had other positive effects on the general running of the car, with seemingly more power and economy to boot. I have seen that the ecu update has this effect with a more up to date map but before I get too excited, would just like to get the opinions of anybody else that has has this done. Is there tangible improvements or am I just dreaming 🤔