Filtering Metricbeat data in LogStash


I have installed metricbeat on my windows servers and when I noticed it was shipping all resource utilisation but I do not want everything.
Based on my requirement I modified metricbeat config file so that I should get only CPU, MEMORY and Disk Utilisation. Now most of the unnecessary data had been filtered in Beats level,
Still I can able to see unnecessary data which is related to CPU, MEMORY and DISK Utilisation

But am looking only below parameter

system.memory.used.pct for MEMORY
system.cpu.system.pct for CPU
system.filesystem.used.pct for Disk utilisation

and rest of the fields I do not want,

So is there any way to filter out such unnecessary data in LogStash


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