Anyone witness the odd fluctuation of power usage while mining on whatever choice algo?

I was testing on cryptonight v7 and fast and left open HWinfo monitor for like 45 minutes and power use for example on my 1060 went from 45w all the way up to 140w at MAX with a average of like 59ish. Why such large range of fluctuation? Power usage on MSI after burner also goes up and down from 40% to 110% and has a shark tooth type usage graphing(on all cards as well). Power in MSI is set to 65% TDP.

On Xmr stak mining same it only fluctuates between 25 watts with a average of 69W and goes up to Mid 80W usage MAX. Power usage graph is also more tame and seemingly normal range of fluctuation.

Should I be worried or not? I mined fine for several hours straight with no crashes or errors upon testing.