I just migrated to julia 0.7. Deleted all my atom packages (removed ~/.atom) and installed juno again from the atom package manager.
Now I get a very slow julia console in atom/juno: I have to wait a few seconds after I press any key for the character to appear on the julia console. This on linux x64. Looking at the CPU usage on my machine, it is very low so this is not the problem.
Anyone else having this problem? Is there a fix?