+1 for this issue. Getting small lag spikes when using the editor.
For me, it's mainly noticeable when autofill does it's thing - if I type out an object quickly and hit tab, sometimes it doesn't register all the letters and will pick a different object that starts with the same first letter. For example, I want to compare a condition with a 'bugWorm' object, so I quickly type 'bugW' followed by tab into the field, but it will pick 'bugFly' instead.
Not the end of the world as I just have to slow down a second (literally just a second) to make sure it's filtered down before hitting tab.
Though, I did have one lag spike yesterday and the editor never recovered. Had to revert to an autosave.
Thinking about this though, I think it might be happening more the longer my project is open. It's not unusual for me to have the project open for +12 hours a day. I'll have to pay attention to when this happens in relation to how long I've had the editor open for.