excessive cpu consume of activity monitor , help


hi
have noticed excessive cpu consume of activity monitor

process "activity monitor" uses always @ least 10% or 15% of cpu , when imac idle
sometime jump 40% of cpu

outside activity monitor , processes around 0.4% or 0.9% of cpu

set refresh every 5 seconds lower cpu consume

, there alternative free?

may ask if have noticed same issues? mean refresh every 5 seconds activity monitor unless , use every second or every 2 seconds


how consume activity monitor set refresh every second?
 



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