Anyone experiencing high rates of battery drain when using the iOS version of the app? Admittedly, I'm using a fairly old phone here (iPhone 6S), but displaying one day of flight search results consistently uses 1-2% of battery; toggling to a different date or selecting a flight and displaying the results for the return leg uses another 1-2%. This only started happening maybe 2-3 months ago, so I'm wondering if a recent app update or my phone's old age is the primary cause here.