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Second that. ECO mode all the time. No down-side noticed, quick if you really need the 222HP power. Just step on it and put the pedal to the metal! You'll be surprised...
Just for fun: set the display on the AWD mode. Nice graphic to show you which wheel gets the power

 

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Or turn off the A/C. No need for it; running it once a while to keep it alive. Not a real down side.

 

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At the moment we are suffering a heat wave (>40C), so it will be used a bit more often. But in general: no A/C (not pleasant due to dry air), unless...