Hello all,
I was reminded by a user about XQuartz related issue for using NMRFAM-Sparky.
If your XQuartz version is 2.7.10 - 2.7.11-rc1, NMRFAM-Sparky may be slow.
The problem is related to this:
97546 – fc-cache failure with /System/Library/Fonts
And, it is addressed to be fixed in the latest version:
Cheers,
Woonghee