Apple Watch SE heart rate data
What can I do to get the watch to record accurate heart rate info during a run? For the first 8-12 minutes, the data shows a constant, incredibly elevated heart rate (~190bpm). Thereafter, it seems to begin recording what would be accurate data. I see the same problem in both the Apple Workouts app and Strava. More curious, if I simply check my heart rate using the heart rate module, it shows a normal value, so it seems that the sensor is functional.
Apple Watch SE, watchOS 7