This is about the newer LE 2M PHY, which was added for "replacing Classic" (which is 2-3M) use cases. It's not surprising that it's not as efficient as the more

This is about the newer LE 2M PHY, which was added for "replacing Classic" (which is 2-3M) use cases. It's not surprising that it's not as efficient as the more widely used 1M PHY.