Honestly I don't understand the pessimistic view here. I think every release since Microsoft started funding python has increased high single digit best case performance.
Rather than focussing on the raw number compare to python 3.5 or so. It's still getting significantly faster.
If they keep doing this steady pace they are slowly saving the planet!
If you do that in Europe you have to pay them during standby hours.
400k/year seems very low to me.