Cooling profile seems to be sloping the wrong way?

Been on the system for a few weeks now, and the cooling profile seems to be sloping the wrong way? I feel like I should be getting less cooling delta the higher outdoor temps are, not the opposite, anyone seen this before?

The top left indicates it only has 2 weeks of data to work on right now; that’s probably not quite enough for it to stabilize yet. You may have had, for example, hot but cloudy days along with cooler but sunny days that skewed the cooling time required. I would expect it to gradually start slopping the opposite way as it gathers more data over the next couple of weeks.

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The reverse slope can be the result of a modulating setup that only uses Y