since your CPU has 16 threads (“cores” but not really cores, you probably only have 8 of that), if a process uses up all the capacity of a single core, that will have a 100/16 = ~6% cpu usage. In my experience looking for this really works… at least on windows, please don’t hurt me. it should on linux too, but there I don’t have it at such a visible place.
this may not work that much though when your system is under a higher load, and the process you’re looking for also has a higher CPU usage, like 30% or something.
in this case you’ll want to look for the cpu usage of the individual threads of processes with a higher cpu usage. if you have a process which has a thread with 6% cpu usage (in case of a 16 hardware thread cpu), then that process is at fault. by looking at the name of the thread you may even find out what is its purpose.
it is superior in all the ways. too bad it’s barely supported by anything