But I still feel like I'm dying?
Riding bikes for years so I expect to have to push quite hard to get my heart rate up.
I'm new to running and that will get the heart rate up in a way that seems to relate to the effort and speed.
However, in the pool, perceived effort says 8/10
Heart rate says 4/10
Speed says 2/10
My technique could improve but looking around, there's worse technique going 50% quicker.
Can't get my head around it.