Thanks, I might give it a spin on the weekend then and see how well it performs compared to Sublime Text. If what other people say here are true - as in it uses considerable CPU and GPU resources being idle - then I'll know it's not a usable piece of software.
Is it constantly using that 4.7% CPU? (which could be one or two CPU cores depending on the processor).
For (what should be) an event driven application using any amount of CPU just sitting there idle is a big no-no. Anyone on a laptop should pay attention.