DJI GO 4 "power meter"?

[alex_markov]

I saw several times DJI GO 4 screen captures with some sort of power meter in lower left side where i have a circle with direction to my drone, Please help me find this feature in DJI GO 4 for IOS.

Example

rpm's are really high as my remote shows them in a vicinity of 4-600 but still an interesting feature.

 

[Kilrah]

It appears when you switch to sport mode.

And your remote shows RPM x10 as written on the screen.