I don't see any performance issues of notable concern with Atom. I've done my fair share of dev work both using Sublime and working on Sublime packages.
Are you constantly working in super large files or on an old machine?
Also, if my package was solely responsible for making you feel Atom was slow, :-( (really hope not) I have, with the help of another contributor changed the labels and animations, so that they all behave a lot faster now, and the whole feel is a bit cleaner.
Maybe give Atom another shot with react turned on?
Also, while the whole character level precision ace-jump like easymotion is great it's a little too complicated for my tastes. Several other people agree. How have you been liking it? Does it jump between panes/views? Can you use it to highlight text?
I almost had a sublime version of jumpy working (it jumped views) but I found the architecture of sublime packages at least 4x more difficult to develop than Atom packages (web tech / chromium etc.)
I think with the ease of development of Atom packages it's only a matter of time before Atom takes over.
Very different. I had seen this a long time ago, wasn't able to get it to work at the time, and was recently reminded by someone about it. He actually said he prefers EasyMotion because of character level precision. I was thinking of trying to create that as well, but I noticed someone has already started with an atom plugin called quick-jump (Today).
Personally, I think jumpy is a bit easier on the brain, but only brings you to the words. Also the quick-jump doesn't yet seem to work for vim-mode or multiple pane jumping. I might try to contribute to quick-jump, or start my own depending on collaboration etc.