> BBEdit and SublimeText never tax the CPU unless I am working with extremely large files […] it really need to get the resource utilization under control
Neither does Atom for most users. It's not just n problem of «resource utilization», you're clearly facing a bug … Maybe you should consider submitting an issue (https://github.com/atom/atom/issues)
I see a number of current CPU related issues for Atom. I will look into using the performance diagnostic tools and see if I can contribute any new insights.
Again, I am see the issues on admittedly rather heavily customized workhorse MacBook (lots of Unix level tweets), AND on my stock Mac Mini. So I don't think this is a case isolated to just me.
Neither does Atom for most users. It's not just n problem of «resource utilization», you're clearly facing a bug … Maybe you should consider submitting an issue (https://github.com/atom/atom/issues)